Collection: Screws - Thumb - Knurled - Stainless

Screws -> Thumb -> Knurled -> Stainless

There are 12 products in the sub-categories of Screws - Thumb - Knurled - Stainless. Browse the Screws - Thumb - Knurled - Stainless products table. To narrow down the selection, please choose a sub-category from the links below.

Category Details

This category includes various types of thumb screws.
  • An expanded range may be available on special order. Please enquire.

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Screws - Thumb - Knurled - Stainless category on the MBA Minibearings main store.
Thread Size (C) Thread Length (Tl) Overall Length (L) Head Diameter (D) Head Height (H) Indicative
Image
Thumb Screws - 4-40 UNC - 2.85mm - 9.53x14.29 mm Knurled - Stainless Steel Screw
Thread Size (C)
4-40 UNC (2.85mm)
Thread Length (Tl)
9.53
mm
Overall Length (L)
14.29
mm
Head Diameter (D)
7.94
mm
Head Height (H)
4.76
mm
Thumb Screws - 4-40 UNC - 2.85mm - 9.53x14.29 mm Knurled - Stainless Steel
Material: Stainless Steel    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Deleted Item. Available while stocks last.
Part Number: THS028C-010-K-3 (Each)
3 Available Now | Item Discontinued - Up to 3 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $7.01 AUD
Regular price $8.41 AUD Sale price $7.01 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thread Size (C) Thread Length (Tl) Overall Length (L) Indicative
Image
Thumb Screws - 4-40 UNC - 2.85mm - 9.53x14.29 mm Knurled - Stainless Steel Screw
Thread Size (C)
4-40 UNC (2.85mm)
Thread Length (Tl)
9.53
mm
Overall Length (L)
14.29
mm
Thumb Screws - 4-40 UNC - 2.85mm - 9.53x14.29 mm Knurled - Stainless Steel
Material: Stainless Steel    Head Diameter (D): 7.94 mm    Head Height (H): 4.76 mm    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Deleted Item. Available while stocks last.
Part Number: THS028C-010-K-3 (Each)
3 Available Now | Item Discontinued - Up to 3 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $7.01 AUD
Regular price $8.41 AUD Sale price $7.01 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - 4-40 UNC - 2.85mm - 25.4x34.93 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
4-40 UNC (2.85mm)
Thread Length (Tl)
25.40
mm
Overall Length (L)
34.93
mm
Head Diameter (D)
4.76
mm
Thumb Screws - 4-40 UNC - 2.85mm - 25.4x34.93 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80   
Category: Screws - Thumb - Knurled - Stainless - Precision Head
Part Number: THS028C-025-K-3-P (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026
Regular price $15.41 AUD
Regular price Sale price $15.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thumb Screws - 4-40 UNC - 2.85mm - 25.4x34.93 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
4-40 UNC (2.85mm)
Thread Length (Tl)
25.40
mm
Overall Length (L)
34.93
mm
Thumb Screws - 4-40 UNC - 2.85mm - 25.4x34.93 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80    Head Diameter (D): 4.76 mm   
Category: Screws - Thumb - Knurled - Stainless - Precision Head
Part Number: THS028C-025-K-3-P (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026
Regular price $15.41 AUD
Regular price Sale price $15.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thumb Screws - M3 - 3x0.5mm - 6x10.5 mm Knurled - Stainless Steel Screw
Thread Size (C)
M3 (3x0.5mm)
Thread Length (Tl)
6.00
mm
Overall Length (L)
10.50
mm
Head Diameter (D)
12.00
mm
Head Height (H)
4.50
mm
Thumb Screws - M3 - 3x0.5mm - 6x10.5 mm Knurled - Stainless Steel
Material: Stainless Steel    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Deleted Item. Available while stocks last.
Part Number: THS030M-006-K-3 (PK-2)
1 pack (2 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $11.87 AUD
Regular price $22.56 AUD Sale price $11.87 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (2 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - M3 - 3x0.5mm - 6x10.5 mm Knurled - Stainless Steel Screw
Thread Size (C)
M3 (3x0.5mm)
Thread Length (Tl)
6.00
mm
Overall Length (L)
10.50
mm
Thumb Screws - M3 - 3x0.5mm - 6x10.5 mm Knurled - Stainless Steel
Material: Stainless Steel    Head Diameter (D): 12.00 mm    Head Height (H): 4.50 mm    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Deleted Item. Available while stocks last.
Part Number: THS030M-006-K-3 (PK-2)
1 pack (2 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $11.87 AUD
Regular price $22.56 AUD Sale price $11.87 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (2 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - M3 - 3x0.5mm - 10x12.5 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
M3 (3x0.5mm)
Thread Length (Tl)
10.00
mm
Overall Length (L)
12.50
mm
Head Diameter (D)
12.00
mm
Head Height (H)
2.50
mm
Thumb Screws - M3 - 3x0.5mm - 10x12.5 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS030M-010-K-3 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
Regular price $8.77 AUD
Regular price Sale price $8.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thumb Screws - M3 - 3x0.5mm - 10x12.5 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
M3 (3x0.5mm)
Thread Length (Tl)
10.00
mm
Overall Length (L)
12.50
mm
Thumb Screws - M3 - 3x0.5mm - 10x12.5 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80    Head Diameter (D): 12.00 mm    Head Height (H): 2.50 mm    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS030M-010-K-3 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
Regular price $8.77 AUD
Regular price Sale price $8.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thumb Screws - M4 - 4x0.7mm - 8x13.5 mm Knurled - Stainless Steel Screw
Thread Size (C)
M4 (4x0.7mm)
Thread Length (Tl)
8.00
mm
Overall Length (L)
13.50
mm
Head Diameter (D)
16.00
mm
Head Height (H)
5.50
mm
Thumb Screws - M4 - 4x0.7mm - 8x13.5 mm Knurled - Stainless Steel
Material: Stainless Steel    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Deleted Item. Available while stocks last.
Part Number: THS040M-008-K-3 (PK-2)
1 pack (2 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $15.60 AUD
Regular price $29.64 AUD Sale price $15.60 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (2 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - M4 - 4x0.7mm - 8x13.5 mm Knurled - Stainless Steel Screw
Thread Size (C)
M4 (4x0.7mm)
Thread Length (Tl)
8.00
mm
Overall Length (L)
13.50
mm
Thumb Screws - M4 - 4x0.7mm - 8x13.5 mm Knurled - Stainless Steel
Material: Stainless Steel    Head Diameter (D): 16.00 mm    Head Height (H): 5.50 mm    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Deleted Item. Available while stocks last.
Part Number: THS040M-008-K-3 (PK-2)
1 pack (2 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $15.60 AUD
Regular price $29.64 AUD Sale price $15.60 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (2 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - 8-32 UNC - 4.17mm - 9.53x15.88 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
8-32 UNC (4.17mm)
Thread Length (Tl)
9.53
mm
Overall Length (L)
15.88
mm
Head Diameter (D)
9.53
mm
Thumb Screws - 8-32 UNC - 4.17mm - 9.53x15.88 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80   
Category: Screws - Thumb - Knurled - Stainless - Slim Head
Part Number: THS042C-010-K-3-N (Each)
1 Available Now | Further orders can be expected around Sat, Jun 27, 2026
Regular price $8.05 AUD
Regular price $9.65 AUD Sale price $8.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Thumb Screws - 8-32 UNC - 4.17mm - 9.53x15.88 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
8-32 UNC (4.17mm)
Thread Length (Tl)
9.53
mm
Overall Length (L)
15.88
mm
Thumb Screws - 8-32 UNC - 4.17mm - 9.53x15.88 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80    Head Diameter (D): 9.53 mm   
Category: Screws - Thumb - Knurled - Stainless - Slim Head
Part Number: THS042C-010-K-3-N (Each)
1 Available Now | Further orders can be expected around Sat, Jun 27, 2026
Regular price $8.05 AUD
Regular price $9.65 AUD Sale price $8.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Thumb Screws - 8-32 UNC - 4.17mm - 9.53x14.29 mm Knurled - Stainless Steel Screw
Thread Size (C)
8-32 UNC (4.17mm)
Thread Length (Tl)
9.53
mm
Overall Length (L)
14.29
mm
Head Diameter (D)
9.53
mm
Head Height (H)
4.76
mm
Thumb Screws - 8-32 UNC - 4.17mm - 9.53x14.29 mm Knurled - Stainless Steel
Material: Stainless Steel    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS042C-010-K-3 (Each)
2 Available Now | Further orders can be expected around Mon, Jul 13, 2026
Regular price $20.95 AUD
Regular price Sale price $20.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Thumb Screws - 8-32 UNC - 4.17mm - 9.53x14.29 mm Knurled - Stainless Steel Screw
Thread Size (C)
8-32 UNC (4.17mm)
Thread Length (Tl)
9.53
mm
Overall Length (L)
14.29
mm
Thumb Screws - 8-32 UNC - 4.17mm - 9.53x14.29 mm Knurled - Stainless Steel
Material: Stainless Steel    Head Diameter (D): 9.53 mm    Head Height (H): 4.76 mm    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS042C-010-K-3 (Each)
2 Available Now | Further orders can be expected around Mon, Jul 13, 2026
Regular price $20.95 AUD
Regular price Sale price $20.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Thumb Screws - M5 - 5x0.8mm - 9x14 mm Knurled - Stainless Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (Tl)
9.00
mm
Overall Length (L)
14.00
mm
Head Diameter (D)
11.00
mm
Head Height (H)
5.00
mm
Thumb Screws - M5 - 5x0.8mm - 9x14 mm Knurled - Stainless Steel
Material: Stainless Steel    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS050M-009-K-3 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 13, 2026
Regular price $16.50 AUD
Regular price Sale price $16.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thumb Screws - M5 - 5x0.8mm - 9x14 mm Knurled - Stainless Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (Tl)
9.00
mm
Overall Length (L)
14.00
mm
Thumb Screws - M5 - 5x0.8mm - 9x14 mm Knurled - Stainless Steel
Material: Stainless Steel    Head Diameter (D): 11.00 mm    Head Height (H): 5.00 mm    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS050M-009-K-3 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 13, 2026
Regular price $16.50 AUD
Regular price Sale price $16.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thumb Screws - M6 - 6x1mm - 16x21 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
M6 (6x1mm)
Thread Length (Tl)
16.00
mm
Overall Length (L)
21.00
mm
Head Diameter (D)
24.00
mm
Head Height (H)
5.00
mm
Thumb Screws - M6 - 6x1mm - 16x21 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS060M-016-K-3 (Each)
4 Available Now | Further orders can be expected around Sat, Jul 11, 2026
Regular price $9.59 AUD
Regular price $17.89 AUD Sale price $9.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Thumb Screws - M6 - 6x1mm - 16x21 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
M6 (6x1mm)
Thread Length (Tl)
16.00
mm
Overall Length (L)
21.00
mm
Thumb Screws - M6 - 6x1mm - 16x21 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80    Head Diameter (D): 24.00 mm    Head Height (H): 5.00 mm    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS060M-016-K-3 (Each)
4 Available Now | Further orders can be expected around Sat, Jul 11, 2026
Regular price $9.59 AUD
Regular price $17.89 AUD Sale price $9.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

4 Available Now. Backorder if more than 4.
Thumb Screws - M6 - 6x1mm - 18x24 mm Knurled - Stainless Steel Screw
Thread Size (C)
M6 (6x1mm)
Thread Length (Tl)
18.00
mm
Overall Length (L)
24.00
mm
Head Diameter (D)
13.00
mm
Head Height (H)
6.00
mm
Thumb Screws - M6 - 6x1mm - 18x24 mm Knurled - Stainless Steel
Material: Stainless Steel    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS060M-018-K-3 (Each)
2 Available Now | Further orders can be expected around Mon, Jul 13, 2026
Regular price $31.05 AUD
Regular price $58.71 AUD Sale price $31.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Thumb Screws - M6 - 6x1mm - 18x24 mm Knurled - Stainless Steel Screw
Thread Size (C)
M6 (6x1mm)
Thread Length (Tl)
18.00
mm
Overall Length (L)
24.00
mm
Thumb Screws - M6 - 6x1mm - 18x24 mm Knurled - Stainless Steel
Material: Stainless Steel    Head Diameter (D): 13.00 mm    Head Height (H): 6.00 mm    Finish: Plain   
Category: Screws - Thumb - Knurled - Stainless - Standard
Part Number: THS060M-018-K-3 (Each)
2 Available Now | Further orders can be expected around Mon, Jul 13, 2026
Regular price $31.05 AUD
Regular price $58.71 AUD Sale price $31.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Thumb Screws - 1/4-20 UNC - 6.35mm - 15.88x23.81 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
1/4-20 UNC (6.35mm)
Thread Length (Tl)
15.88
mm
Overall Length (L)
23.81
mm
Head Diameter (D)
19.05
mm
Thumb Screws - 1/4-20 UNC - 6.35mm - 15.88x23.81 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80   
Category: Screws - Thumb - Knurled - Stainless - Slim Head
Part Number: THS064C-016-K-3-N (Each)
2 Available Now | Further orders can be expected around Sat, Jun 27, 2026
Regular price $33.14 AUD
Regular price Sale price $33.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Thumb Screws - 1/4-20 UNC - 6.35mm - 15.88x23.81 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
1/4-20 UNC (6.35mm)
Thread Length (Tl)
15.88
mm
Overall Length (L)
23.81
mm
Thumb Screws - 1/4-20 UNC - 6.35mm - 15.88x23.81 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80    Head Diameter (D): 19.05 mm   
Category: Screws - Thumb - Knurled - Stainless - Slim Head
Part Number: THS064C-016-K-3-N (Each)
2 Available Now | Further orders can be expected around Sat, Jun 27, 2026
Regular price $33.14 AUD
Regular price Sale price $33.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Thumb Screws - 1/4-20 UNC - 6.35mm - 25.4x36.51 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
1/4-20 UNC (6.35mm)
Thread Length (Tl)
25.40
mm
Overall Length (L)
36.51
mm
Head Diameter (D)
19.05
mm
Thumb Screws - 1/4-20 UNC - 6.35mm - 25.4x36.51 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80   
Category: Screws - Thumb - Knurled - Stainless - Slim Head
Part Number: THS064C-025-K-3-N (Each)
2 Available Now | Further orders can be expected around Sat, Jun 27, 2026
Regular price $22.14 AUD
Regular price $26.56 AUD Sale price $22.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Thumb Screws - 1/4-20 UNC - 6.35mm - 25.4x36.51 mm Knurled - Stainless Steel 303/304 Similar to A2 or 18-8 HRB80 Screw
Thread Size (C)
1/4-20 UNC (6.35mm)
Thread Length (Tl)
25.40
mm
Overall Length (L)
36.51
mm
Thumb Screws - 1/4-20 UNC - 6.35mm - 25.4x36.51 mm Knurled - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2 or 18-8) HRB80    Head Diameter (D): 19.05 mm   
Category: Screws - Thumb - Knurled - Stainless - Slim Head
Part Number: THS064C-025-K-3-N (Each)
2 Available Now | Further orders can be expected around Sat, Jun 27, 2026
Regular price $22.14 AUD
Regular price $26.56 AUD Sale price $22.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.