Keys - Machine - Stainless Steel

Keys -> Machine -> Stainless Steel

There are 9 products in the sub-categories of Keys - Machine - Stainless Steel. Browse the Keys - Machine - Stainless Steel products table.

Category Details

A selection of Stainless Steel Machine Keys. Form A has rounded ends. Form B has square ends. Form AB has one end rounded and one end square. DIN6885

  • 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 Keys - Machine - Stainless Steel category on the MBA Minibearings main store.
Width (W) Height (h) Length (L) Indicative
Image
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
3.18
mm
Height (h)
3.18
mm
Length (L)
25.40
mm
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 708
Part Number: K-0318-0318-2540-KS6 (PK-10)
20 units (200 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
$7.59 AUD
$7.59 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 20 available can be backordered.
Width (W) Height (h) Length (L) Indicative
Image
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
3.18
mm
Height (h)
3.18
mm
Length (L)
25.40
mm
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 708
Part Number: K-0318-0318-2540-KS6 (PK-10)
20 units (200 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
$7.59 AUD
$7.59 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

20 units (200 pcs) Available Now. Backorder if more than 20.
Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
10.00
mm
+/- 0.25
(Equiv. 0.394 in.)
1050507 | K-0400-0400-1000A-3 (PK-50) --- Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 221
Part Number: K-0400-0400-1000A-3 (PK-50)
2 units (100 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
$127.50 AUD
$153.00 AUD $127.50 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
10.00
mm
+/- 0.25
(Equiv. 0.394 in.)
1050507 | K-0400-0400-1000A-3 (PK-50) --- Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 221
Part Number: K-0400-0400-1000A-3 (PK-50)
2 units (100 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
$127.50 AUD
$153.00 AUD $127.50 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

2 units (100 pcs) Available Now. Backorder if more than 2.
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
18.00
mm
+/- 0.25
(Equiv. 0.709 in.)
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Deleted Item. Available while stocks last.
Part Number: K-0400-0400-1800A-6 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$2.00 AUD
$3.80 AUD $2.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
18.00
mm
+/- 0.25
(Equiv. 0.709 in.)
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Deleted Item. Available while stocks last.
Part Number: K-0400-0400-1800A-6 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$2.00 AUD
$3.80 AUD $2.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Machine Keys - 5x5x16 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
5.00
mm
+ 0 / - 0.051
(Equiv. 0.197 in.)
Height (h)
5.00
mm
+ 0 / - 0.051
(Equiv. 0.197 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 5x5x16 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 8968
Part Number: K-0500-0500-1600A-3 (Each)
45 Available Now | Further orders can be expected around Thu, Jul 02, 2026
$3.14 AUD
$3.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 45 available can be backordered.
Machine Keys - 5x5x16 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
5.00
mm
+ 0 / - 0.051
(Equiv. 0.197 in.)
Height (h)
5.00
mm
+ 0 / - 0.051
(Equiv. 0.197 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 5x5x16 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 8968
Part Number: K-0500-0500-1600A-3 (Each)
45 Available Now | Further orders can be expected around Thu, Jul 02, 2026
$3.14 AUD
$3.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

45 Available Now. Backorder if more than 45.
Machine Keys - 5x5x18 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
5.00
mm
+ 0 / - 0.051
(Equiv. 0.197 in.)
Height (h)
5.00
mm
+ 0 / - 0.051
(Equiv. 0.197 in.)
Length (L)
18.00
mm
+/- 0.25
(Equiv. 0.709 in.)
Machine Keys - 5x5x18 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0500-0500-1800A-3 (Each)
20 Available Now | Further orders can be expected around Wed, Jul 22, 2026
$3.41 AUD
$3.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 20 available can be backordered.
Machine Keys - 5x5x18 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
5.00
mm
+ 0 / - 0.051
(Equiv. 0.197 in.)
Height (h)
5.00
mm
+ 0 / - 0.051
(Equiv. 0.197 in.)
Length (L)
18.00
mm
+/- 0.25
(Equiv. 0.709 in.)
Machine Keys - 5x5x18 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0500-0500-1800A-3 (Each)
20 Available Now | Further orders can be expected around Wed, Jul 22, 2026
$3.41 AUD
$3.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

20 Available Now. Backorder if more than 20.
Machine Keys - 6x6x25 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Height (h)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 6x6x25 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 631
Part Number: K-0600-0600-2500A-6 (Each)
50 Available Now | Further orders can be expected around Thu, Jul 02, 2026
$3.32 AUD
$3.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 50 available can be backordered.
Machine Keys - 6x6x25 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Height (h)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 6x6x25 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 631
Part Number: K-0600-0600-2500A-6 (Each)
50 Available Now | Further orders can be expected around Thu, Jul 02, 2026
$3.32 AUD
$3.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

50 Available Now. Backorder if more than 50.
Machine Keys - 6x6x32 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Key
Width (W)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Height (h)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Length (L)
32.00
mm
+ / - 0.25
(Equiv. 1.26 in.)
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 370
Part Number: K-0600-0600-3200A-4 (PK-5)
Out of Stock | Backorder Now | More stock due: 4 (20 pcs) around Tue, Jun 09, 2026 | Further orders can be expected around Thu, Jul 02, 2026
$22.05 AUD
$22.05 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 6x6x32 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Key
Width (W)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Height (h)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Length (L)
32.00
mm
+ / - 0.25
(Equiv. 1.26 in.)
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 370
Part Number: K-0600-0600-3200A-4 (PK-5)
Out of Stock | Backorder Now | More stock due: 4 (20 pcs) around Tue, Jun 09, 2026 | Further orders can be expected around Thu, Jul 02, 2026
$22.05 AUD
$22.05 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 6x6x40 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
6.00
mm
+ 0 / - 0.051
(Equiv. 0.236 in.)
Height (h)
6.00
mm
+ 0 / - 0.051
(Equiv. 0.236 in.)
Length (L)
40.00
mm
+ / - 0.25
(Equiv. 1.575 in.)
1064562 | K-0600-0600-4000B-3 (PK-5) --- Machine Keys - 6x6x40 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Material: Stainless Steel 303 (Similar to A2 or 304 or 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 39
Part Number: K-0600-0600-4000B-3 (PK-5)
Out of Stock | Backorder Now | More stock due: 4 (20 pcs) around Tue, Jun 09, 2026 | Further orders can be expected around Thu, Jul 02, 2026
$27.05 AUD
$27.05 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 6x6x40 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
6.00
mm
+ 0 / - 0.051
(Equiv. 0.236 in.)
Height (h)
6.00
mm
+ 0 / - 0.051
(Equiv. 0.236 in.)
Length (L)
40.00
mm
+ / - 0.25
(Equiv. 1.575 in.)
1064562 | K-0600-0600-4000B-3 (PK-5) --- Machine Keys - 6x6x40 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Material: Stainless Steel 303 (Similar to A2 or 304 or 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 39
Part Number: K-0600-0600-4000B-3 (PK-5)
Out of Stock | Backorder Now | More stock due: 4 (20 pcs) around Tue, Jun 09, 2026 | Further orders can be expected around Thu, Jul 02, 2026
$27.05 AUD
$27.05 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 6x6x50 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Key
Width (W)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Height (h)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Length (L)
50.00
mm
+ / - 0.25
(Equiv. 1.969 in.)
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 46
Part Number: K-0600-0600-5000A-4 (Each)
Out of Stock | Backorder Now | More stock due: 5 around Mon, Jun 22, 2026 | Further orders can be expected around Thu, Jul 02, 2026
$7.50 AUD
$9.00 AUD $7.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 6x6x50 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Key
Width (W)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Height (h)
6.00
mm
+ 0 / - 0.030
(Equiv. 0.236 in.)
Length (L)
50.00
mm
+ / - 0.25
(Equiv. 1.969 in.)
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 46
Part Number: K-0600-0600-5000A-4 (Each)
Out of Stock | Backorder Now | More stock due: 5 around Mon, Jun 22, 2026 | Further orders can be expected around Thu, Jul 02, 2026
$7.50 AUD
$9.00 AUD $7.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.