Collection: Keys - Machine - Carbon Steel

Keys -> Machine -> Carbon Steel
Width (W) Height (h) Length (L) Indicative
Image
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
15.00
mm
+/ - 0.25
(Equiv. 0.591 in.)
Machine Keys - 3x3x15 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 291
Part Number: K-0300-0300-1500A-C (100 Pcs)
Machine Keys - 3x3x15 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $90.05 AUD
Regular price $108.05 AUD Sale price $90.05 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W) Height (h) Length (L) Indicative
Image
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
15.00
mm
+/ - 0.25
(Equiv. 0.591 in.)
Machine Keys - 3x3x15 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 291
Part Number: K-0300-0300-1500A-C (100 Pcs)
Machine Keys - 3x3x15 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $90.05 AUD
Regular price $108.05 AUD Sale price $90.05 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
16.00
mm
+/ - 0.25
(Equiv. 0.63 in.)
Machine Keys - 3x3x16 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 2000
Part Number: K-0300-0300-1600A-C (50 Pcs)
Machine Keys - 3x3x16 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Thu, Nov 27, 2025
Regular price $28.50 AUD
Regular price $34.20 AUD Sale price $28.50 AUD
50 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
16.00
mm
+/ - 0.25
(Equiv. 0.63 in.)
Machine Keys - 3x3x16 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 2000
Part Number: K-0300-0300-1600A-C (50 Pcs)
Machine Keys - 3x3x16 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Thu, Nov 27, 2025
Regular price $28.50 AUD
Regular price $34.20 AUD Sale price $28.50 AUD
50 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
18.00
mm
+/ - 0.25
(Equiv. 0.709 in.)
Machine Keys - 3x3x18 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 1132
Part Number: K-0300-0300-1800A-C (50 Pcs)
Machine Keys - 3x3x18 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $29.05 AUD
Regular price $34.85 AUD Sale price $29.05 AUD
50 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
18.00
mm
+/ - 0.25
(Equiv. 0.709 in.)
Machine Keys - 3x3x18 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 1132
Part Number: K-0300-0300-1800A-C (50 Pcs)
Machine Keys - 3x3x18 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $29.05 AUD
Regular price $34.85 AUD Sale price $29.05 AUD
50 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 3x3x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0300-0300-2000BO-C
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 3x3x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0300-0300-2000BO-C
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 3x3x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 198
Part Number: K-0300-0300-2000B-C (100 Pcs)
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $115.59 AUD
Regular price $138.71 AUD Sale price $115.59 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 3x3x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 198
Part Number: K-0300-0300-2000B-C (100 Pcs)
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $115.59 AUD
Regular price $138.71 AUD Sale price $115.59 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 3x3x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-2000AO-C
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 3x3x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-2000AO-C
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 3x3x20 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 27
Part Number: K-0300-0300-2000A-C (10 Pcs)
Machine Keys - 3x3x20 mm - Carbon Steel Key
128 units (1280 pcs) Available Now | Further orders can be expected around Wed, Nov 26, 2025
Regular price $6.23 AUD
Regular price Sale price $6.23 AUD
10 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

128 units (1280 pcs) Available Now. Backorder if more than 128.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 3x3x20 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 27
Part Number: K-0300-0300-2000A-C (10 Pcs)
Machine Keys - 3x3x20 mm - Carbon Steel Key
128 units (1280 pcs) Available Now | Further orders can be expected around Wed, Nov 26, 2025
Regular price $6.23 AUD
Regular price Sale price $6.23 AUD
10 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

128 units (1280 pcs) Available Now. Backorder if more than 128.
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 3x3x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0300-0300-2500BO-C
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 3x3x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0300-0300-2500BO-C
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 3x3x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0300-0300-2500B-C
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 3x3x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0300-0300-2500B-C
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 3x3x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-2500AO-C
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 3x3x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-2500AO-C
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 3x3x25 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 27
Part Number: K-0300-0300-2500A-C (5 Pcs)
Machine Keys - 3x3x25 mm - Carbon Steel Key
9 units (45 pcs) Available Now | Further orders can be expected around Wed, Nov 26, 2025
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
5 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

9 units (45 pcs) Available Now. Backorder if more than 9.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 3x3x25 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 27
Part Number: K-0300-0300-2500A-C (5 Pcs)
Machine Keys - 3x3x25 mm - Carbon Steel Key
9 units (45 pcs) Available Now | Further orders can be expected around Wed, Nov 26, 2025
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
5 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

9 units (45 pcs) Available Now. Backorder if more than 9.
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
30.00
mm
+/ - 0.25
(Equiv. 1.181 in.)
Machine Keys - 3x3x30 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0300-0300-3000BO-C
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
30.00
mm
+/ - 0.25
(Equiv. 1.181 in.)
Machine Keys - 3x3x30 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0300-0300-3000BO-C
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
30.00
mm
+/ - 0.25
(Equiv. 1.181 in.)
Machine Keys - 3x3x30 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0300-0300-3000B-C
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
30.00
mm
+/ - 0.25
(Equiv. 1.181 in.)
Machine Keys - 3x3x30 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0300-0300-3000B-C
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
30.00
mm
+/ - 0.25
(Equiv. 1.181 in.)
Machine Keys - 3x3x30 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-3000A-C
Machine Keys - 3x3x30 mm - Carbon Steel Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
30.00
mm
+/ - 0.25
(Equiv. 1.181 in.)
Machine Keys - 3x3x30 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-3000A-C
Machine Keys - 3x3x30 mm - Carbon Steel Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
30.00
mm
+/ - 0.25
(Equiv. 1.181 in.)
Machine Keys - 3x3x30 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-3000AO-C
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
30.00
mm
+/ - 0.25
(Equiv. 1.181 in.)
Machine Keys - 3x3x30 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-3000AO-C
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
40.00
mm
+/ - 0.25
(Equiv. 1.575 in.)
Machine Keys - 3x3x40 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-4000AO-C
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
40.00
mm
+/ - 0.25
(Equiv. 1.575 in.)
Machine Keys - 3x3x40 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-4000AO-C
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
40.00
mm
+/ - 0.25
(Equiv. 1.575 in.)
Machine Keys - 3x3x40 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-4000A-C
Machine Keys - 3x3x40 mm - Carbon Steel Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
40.00
mm
+/ - 0.25
(Equiv. 1.575 in.)
Machine Keys - 3x3x40 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-4000A-C
Machine Keys - 3x3x40 mm - Carbon Steel Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
40.00
mm
+/ - 0.25
(Equiv. 1.575 in.)
Machine Keys - 3x3x40 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0300-0300-4000B-C
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
40.00
mm
+/ - 0.25
(Equiv. 1.575 in.)
Machine Keys - 3x3x40 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0300-0300-4000B-C
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
40.00
mm
+/ - 0.25
(Equiv. 1.575 in.)
Machine Keys - 3x3x40 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0300-0300-4000BO-C
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity
Width (W)
3.00
mm
+ 0.025 / - 0.0
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0.025 / - 0.00
(Equiv. 0.118 in.)
Length (L)
40.00
mm
+/ - 0.25
(Equiv. 1.575 in.)
Machine Keys - 3x3x40 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0300-0300-4000BO-C
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Mon, Jul 24, 2028
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
6.35
mm
+/ - 0.25
(Equiv. 0.25 in.)
Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 533
Part Number: K-0318-0318-0635B-C (100 Pcs)
Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $24.23 AUD
Regular price $29.07 AUD Sale price $24.23 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
6.35
mm
+/ - 0.25
(Equiv. 0.25 in.)
Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 533
Part Number: K-0318-0318-0635B-C (100 Pcs)
Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $24.23 AUD
Regular price $29.07 AUD Sale price $24.23 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
9.53
mm
+/ - 0.25
(Equiv. 0.375 in.)
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 297
Part Number: K-0318-0318-0953A-C
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $4.95 AUD
Regular price Sale price $4.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
9.53
mm
+/ - 0.25
(Equiv. 0.375 in.)
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 297
Part Number: K-0318-0318-0953A-C
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $4.95 AUD
Regular price Sale price $4.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
9.53
mm
+/ - 0.25
(Equiv. 0.375 in.)
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 1957
Part Number: K-0318-0318-0953B-C (100 Pcs)
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $22.23 AUD
Regular price $26.67 AUD Sale price $22.23 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
9.53
mm
+/ - 0.25
(Equiv. 0.375 in.)
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 1957
Part Number: K-0318-0318-0953B-C (100 Pcs)
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $22.23 AUD
Regular price $26.67 AUD Sale price $22.23 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
11.11
mm
+/ - 0.25
(Equiv. 0.437 in.)
Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 393
Part Number: K-0318-0318-1111B-C (50 Pcs)
Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $20.14 AUD
Regular price $24.16 AUD Sale price $20.14 AUD
50 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
11.11
mm
+/ - 0.25
(Equiv. 0.437 in.)
Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard    End Type: B (Square Ends)   
Additional stock available from USA subject to Prior Sale = 393
Part Number: K-0318-0318-1111B-C (50 Pcs)
Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Nov 26, 2025
Regular price $20.14 AUD
Regular price $24.16 AUD Sale price $20.14 AUD
50 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
12.70
mm
+/ - 0.25
(Equiv. 0.5 in.)
Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 272
Part Number: K-0318-0318-1270A-C
Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key
44 Available Now | Further orders can be expected around Wed, Nov 26, 2025
Regular price $1.95 AUD
Regular price $3.44 AUD Sale price $1.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

44 Available Now. Backorder if more than 44.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
12.70
mm
+/ - 0.25
(Equiv. 0.5 in.)
Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Additional stock available from USA subject to Prior Sale = 272
Part Number: K-0318-0318-1270A-C
Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key
44 Available Now | Further orders can be expected around Wed, Nov 26, 2025
Regular price $1.95 AUD
Regular price $3.44 AUD Sale price $1.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

44 Available Now. Backorder if more than 44.