Collection: Balls - Metallic - Stainless Steel - 304 Grade

Balls -> Metallic -> Stainless Steel -> 304 Grade

There are 22 products in the sub-categories of Balls - Metallic - Stainless Steel - 304 Grade. Scroll down or follow the link to Balls - Metallic - Stainless Steel - 304 Grade in the products table to see all these items combined into a handy table with filters.

Category Details

A selection of 304 Grade Stainless Steel Metallic Balls. A2 Grade. Low magnetic permeability. Good corrosion resistance. Excellent for use in handling foodstuffs.

  • Grades shown are AFBMA and ISO3290-1 which relates primarily to the ovality of the ball rather than the diametrical tolerance
  • General balls offered for sale may be from different ball lots, so the diametrical tolerance shown, indicates a variance that might be encountered if balls of different gauges are mixed, unless a ball gauge is specified for the part.
  • For diametrically critical applications, a special quote can be obtained for balls of a specified ball gauge.
  • Non annealed. Hardness: Rockwell C: 25-39. Specific Gravity: 7.916.
  • Low magnetic permeability. Good corrosion resistance. Excellent for use in handling foodstuffs.
  • Note! Increase in magnetic permeability may occur due to the grinding process and can be relieved by heating to over 1000 oC.

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Balls - Metallic - Stainless Steel - 304 Grade category on the MBA Minibearings main store.
Diameter (D) Material Precision Hardness Properties Colour Indicative
Image
Metallic Balls - 1.588 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
1.588
mm
+/- 0.01270
(Equiv. 0.063 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 1.588 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00159-S4-G100 (PK-200)
10 units (2000 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.86 AUD
Regular price Sale price $3.86 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 10 available can be backordered.
Diameter (D) Material Precision Hardness Indicative
Image
Metallic Balls - 1.588 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
1.588
mm
+/- 0.01270
(Equiv. 0.063 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 1.588 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00159-S4-G100 (PK-200)
10 units (2000 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.86 AUD
Regular price Sale price $3.86 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

10 units (2000 pcs) Available Now. Backorder if more than 10.
Metallic Balls - 1.588 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
1.588
mm
+/- 0.01270
(Equiv. 0.063 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 1.588 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00159-S4-G100-P10K (PK-10000)
7 units (70000 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $135.05 AUD
Regular price Sale price $135.05 AUD
Priced, Stocked and Sold Per 10000 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 7 available can be backordered.
Metallic Balls - 1.588 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
1.588
mm
+/- 0.01270
(Equiv. 0.063 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 1.588 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00159-S4-G100-P10K (PK-10000)
7 units (70000 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $135.05 AUD
Regular price Sale price $135.05 AUD
Priced, Stocked and Sold Per 10000 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

7 units (70000 pcs) Available Now. Backorder if more than 7.
Metallic Balls - 2 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
2.000
mm
+/- 0.01270
(Equiv. 0.079 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 2 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00200-S4-G100 (PK-200)
257 units (51400 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $5.32 AUD
Regular price Sale price $5.32 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 257 available can be backordered.
Metallic Balls - 2 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
2.000
mm
+/- 0.01270
(Equiv. 0.079 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 2 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00200-S4-G100 (PK-200)
257 units (51400 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $5.32 AUD
Regular price Sale price $5.32 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

257 units (51400 pcs) Available Now. Backorder if more than 257.
Metallic Balls - 2.381 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
2.381
mm
+/- 0.01270
(Equiv. 0.094 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 2.381 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00238-S4-G100 (PK-500)
65 units (32500 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $6.59 AUD
Regular price Sale price $6.59 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 65 available can be backordered.
Metallic Balls - 2.381 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
2.381
mm
+/- 0.01270
(Equiv. 0.094 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 2.381 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00238-S4-G100 (PK-500)
65 units (32500 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $6.59 AUD
Regular price Sale price $6.59 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

65 units (32500 pcs) Available Now. Backorder if more than 65.
Metallic Balls - 3 mm 304 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
3.000
mm
+/- 0.01270
(Equiv. 0.118 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 200

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 3 mm 304 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00500   
Part Number: BL-00300-S4-G200 (PK-200)
64 units (12800 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $5.32 AUD
Regular price Sale price $5.32 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 64 available can be backordered.
Metallic Balls - 3 mm 304 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
3.000
mm
+/- 0.01270
(Equiv. 0.118 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 200

Hardness
25-39 Rockwell C
Metallic Balls - 3 mm 304 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00500   
Part Number: BL-00300-S4-G200 (PK-200)
64 units (12800 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $5.32 AUD
Regular price Sale price $5.32 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

64 units (12800 pcs) Available Now. Backorder if more than 64.
Metallic Balls - 3.175 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.175
mm
+/- 0.01270
(Equiv. 0.125 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 3.175 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00318-S4-G100 (PK-100)
448 units (44800 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.95 AUD
Regular price Sale price $3.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 448 available can be backordered.
Metallic Balls - 3.175 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.175
mm
+/- 0.01270
(Equiv. 0.125 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 3.175 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00318-S4-G100 (PK-100)
448 units (44800 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.95 AUD
Regular price Sale price $3.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

448 units (44800 pcs) Available Now. Backorder if more than 448.
Metallic Balls - 3.969 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.969
mm
+/- 0.01270
(Equiv. 0.156 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 3.969 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00397-S4-G100 (PK-500)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
Regular price $13.14 AUD
Regular price Sale price $13.14 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 3.969 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.969
mm
+/- 0.01270
(Equiv. 0.156 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 3.969 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00397-S4-G100 (PK-500)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
Regular price $13.14 AUD
Regular price Sale price $13.14 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00400-S4-G100 (PK-200)
279 units (55800 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.95 AUD
Regular price Sale price $3.95 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 279 available can be backordered.
Metallic Balls - 4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00400-S4-G100 (PK-200)
279 units (55800 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.95 AUD
Regular price Sale price $3.95 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

279 units (55800 pcs) Available Now. Backorder if more than 279.
Metallic Balls - 4.763 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.763
mm
+/- 0.01270
(Equiv. 0.188 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 4.763 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00476-S4-G100 (PK-500)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
Regular price $22.95 AUD
Regular price Sale price $22.95 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 4.763 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.763
mm
+/- 0.01270
(Equiv. 0.188 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 4.763 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00476-S4-G100 (PK-500)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
Regular price $22.95 AUD
Regular price Sale price $22.95 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 5 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
5.000
mm
+/- 0.01270
(Equiv. 0.197 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 5 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00500-S4-G100 (PK-100)
171 units (17100 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $5.05 AUD
Regular price Sale price $5.05 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 171 available can be backordered.
Metallic Balls - 5 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
5.000
mm
+/- 0.01270
(Equiv. 0.197 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 5 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00500-S4-G100 (PK-100)
171 units (17100 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $5.05 AUD
Regular price Sale price $5.05 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

171 units (17100 pcs) Available Now. Backorder if more than 171.
Metallic Balls - 5.556 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
5.556
mm
+/- 0.01270
(Equiv. 0.219 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 5.556 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00556-S4-G100 (PK-50)
11 units (550 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $4.68 AUD
Regular price Sale price $4.68 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 11 available can be backordered.
Metallic Balls - 5.556 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
5.556
mm
+/- 0.01270
(Equiv. 0.219 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 5.556 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00556-S4-G100 (PK-50)
11 units (550 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $4.68 AUD
Regular price Sale price $4.68 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

11 units (550 pcs) Available Now. Backorder if more than 11.
Metallic Balls - 6 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
6.000
mm
+/- 0.01270
(Equiv. 0.236 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 6 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00600-S4-G100 (PK-50)
5 units (250 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $6.59 AUD
Regular price Sale price $6.59 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 5 available can be backordered.
Metallic Balls - 6 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
6.000
mm
+/- 0.01270
(Equiv. 0.236 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 6 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00600-S4-G100 (PK-50)
5 units (250 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $6.59 AUD
Regular price Sale price $6.59 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

5 units (250 pcs) Available Now. Backorder if more than 5.
Metallic Balls - 6.35 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
6.350
mm
+/- 0.01270
(Equiv. 0.25 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 6.35 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00635-S4-G100 (PK-100)
94 units (9400 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $11.14 AUD
Regular price Sale price $11.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 94 available can be backordered.
Metallic Balls - 6.35 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
6.350
mm
+/- 0.01270
(Equiv. 0.25 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 6.35 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00635-S4-G100 (PK-100)
94 units (9400 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $11.14 AUD
Regular price Sale price $11.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

94 units (9400 pcs) Available Now. Backorder if more than 94.
Metallic Balls - 7.144 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
7.144
mm
+/- 0.01270
(Equiv. 0.281 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 7.144 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00714-S4-G100 (PK-20)
812 units (16240 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $4.32 AUD
Regular price Sale price $4.32 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 812 available can be backordered.
Metallic Balls - 7.144 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
7.144
mm
+/- 0.01270
(Equiv. 0.281 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 7.144 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00714-S4-G100 (PK-20)
812 units (16240 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $4.32 AUD
Regular price Sale price $4.32 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

812 units (16240 pcs) Available Now. Backorder if more than 812.
Metallic Balls - 7.938 mm 304 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
7.938
mm
+/- 0.01270
(Equiv. 0.313 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 200

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 7.938 mm 304 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00500   
Part Number: BL-00794-S4-G200 (PK-20)
325 units (6500 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.50 AUD
Regular price Sale price $3.50 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 325 available can be backordered.
Metallic Balls - 7.938 mm 304 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
7.938
mm
+/- 0.01270
(Equiv. 0.313 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 200

Hardness
25-39 Rockwell C
Metallic Balls - 7.938 mm 304 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00500   
Part Number: BL-00794-S4-G200 (PK-20)
325 units (6500 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.50 AUD
Regular price Sale price $3.50 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

325 units (6500 pcs) Available Now. Backorder if more than 325.
Metallic Balls - 9.525 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
9.525
mm
+/- 0.01270
(Equiv. 0.375 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 9.525 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00953-S4-G100 (PK-10)
1470 units (14700 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $21.05 AUD
Regular price Sale price $21.05 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1470 available can be backordered.
Metallic Balls - 9.525 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
9.525
mm
+/- 0.01270
(Equiv. 0.375 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 9.525 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-00953-S4-G100 (PK-10)
1470 units (14700 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $21.05 AUD
Regular price Sale price $21.05 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1470 units (14700 pcs) Available Now. Backorder if more than 1470.
Metallic Balls - 12.7 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
12.700
mm
+/- 0.01270
(Equiv. 0.5 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 12.7 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-01270-S4-G100 (PK-20)
159 units (3180 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $12.59 AUD
Regular price Sale price $12.59 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 159 available can be backordered.
Metallic Balls - 12.7 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
12.700
mm
+/- 0.01270
(Equiv. 0.5 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 12.7 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-01270-S4-G100 (PK-20)
159 units (3180 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $12.59 AUD
Regular price Sale price $12.59 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

159 units (3180 pcs) Available Now. Backorder if more than 159.
Metallic Balls - 15 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
15.000
mm
+/- 0.01270
(Equiv. 0.591 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 15 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-01500-S4-G100 (Each)
179 Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.59 AUD
Regular price Sale price $3.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 179 available can be backordered.
Metallic Balls - 15 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
15.000
mm
+/- 0.01270
(Equiv. 0.591 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 15 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-01500-S4-G100 (Each)
179 Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.59 AUD
Regular price Sale price $3.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

179 Available Now. Backorder if more than 179.
Metallic Balls - 15.875 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
15.875
mm
+/- 0.01270
(Equiv. 0.625 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 15.875 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-01588-S4-G100 (Each)
68 Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 68 available can be backordered.
Metallic Balls - 15.875 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
15.875
mm
+/- 0.01270
(Equiv. 0.625 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 15.875 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-01588-S4-G100 (Each)
68 Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

68 Available Now. Backorder if more than 68.
Metallic Balls - 18 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
18.000
mm
+/- 0.01270
(Equiv. 0.709 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 18 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-01800-S4-G100 (Each)
1 Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $4.95 AUD
Regular price Sale price $4.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Metallic Balls - 18 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
18.000
mm
+/- 0.01270
(Equiv. 0.709 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 18 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-01800-S4-G100 (Each)
1 Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $4.95 AUD
Regular price Sale price $4.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Metallic Balls - 25.4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
25.400
mm
+/- 0.01270
(Equiv. 1 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 25.4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-02540-S4-G100 (Each)
36 Available Now | Further orders can be expected around Fri, Mar 13, 2026
Regular price $12.05 AUD
Regular price $33.74 AUD Sale price $12.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 36 available can be backordered.
Metallic Balls - 25.4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
25.400
mm
+/- 0.01270
(Equiv. 1 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 100

Hardness
25-39 Rockwell C
Metallic Balls - 25.4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00250   
Part Number: BL-02540-S4-G100 (Each)
36 Available Now | Further orders can be expected around Fri, Mar 13, 2026
Regular price $12.05 AUD
Regular price $33.74 AUD Sale price $12.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

36 Available Now. Backorder if more than 36.
Metallic Balls - 31.75 mm 304 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
31.750
mm
+/- 0.01270
(Equiv. 1.25 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 200

Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 31.75 mm 304 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Specific Gravity: 7.916    Ovality: +/-0.00500   
Part Number: BL-03175-S4-G200 (Each)
80 Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $30.23 AUD
Regular price Sale price $30.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 80 available can be backordered.
Metallic Balls - 31.75 mm 304 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
31.750
mm
+/- 0.01270
(Equiv. 1.25 in.)
Material
304 Stainless

Precision
ISO 3290 Grade 200

Hardness
25-39 Rockwell C
Metallic Balls - 31.75 mm 304 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916    Ovality: +/-0.00500   
Part Number: BL-03175-S4-G200 (Each)
80 Available Now | Further orders can be expected around Sun, Jan 25, 2026
Regular price $30.23 AUD
Regular price Sale price $30.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

80 Available Now. Backorder if more than 80.