Keys - Machine - Carbon Steel– Page5 – Miniature Bearings Australia - MBA Minibearings - Online, Pick-Up, Retail, Distributors, Wholesale

Width (W)	Height (h)	Length (L)	Indicative Image
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 38.10 mm _{+/ - 0.25} (Equiv. 1.5 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0318-0318-3810AO-C Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W)	Height (h)	Length (L)	Indicative Image
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 38.10 mm _{+/ - 0.25} (Equiv. 1.5 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0318-0318-3810AO-C Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 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) 38.10 mm _{+/ - 0.25} (Equiv. 1.5 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0318-0318-3810B-C (50 Pcs) Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $13.68 AUD Regular price ~~$16.42 AUD~~ Sale price $13.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 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) 38.10 mm _{+/ - 0.25} (Equiv. 1.5 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0318-0318-3810B-C (50 Pcs) Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $13.68 AUD Regular price ~~$16.42 AUD~~ Sale price $13.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
K-0318-0318-3810B-C (50 Pcs) --- Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Key Sale K-0318-0318-3810B-C (50 Pcs) --- Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Key Regular price $13.68 AUD Regular price ~~$16.42 AUD~~ Sale price $13.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
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) 38.10 mm _{+/ - 0.25} (Equiv. 1.5 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0318-0318-3810B-Z (5 Pcs) Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Zinc Plated Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Nov 13, 2025 Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 5 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) 38.10 mm _{+/ - 0.25} (Equiv. 1.5 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0318-0318-3810B-Z (5 Pcs) Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Zinc Plated Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Nov 13, 2025 Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 5 Quantity Required Backorder: Out of Stock.
K-0318-0318-3810B-Z (5 Pcs) --- Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Zinc Plated Key K-0318-0318-3810B-Z (5 Pcs) --- Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Zinc Plated Key Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 44.45 mm _{+/ - 0.25} (Equiv. 1.75 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0318-0318-4445AO-C Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 44.45 mm _{+/ - 0.25} (Equiv. 1.75 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0318-0318-4445AO-C Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 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) 44.45 mm _{+/ - 0.25} (Equiv. 1.75 in.)
Material: Carbon Steel C45 Finish: Dry Rust Inhibitor Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
Part Number: K-0318-0318-4445A-C Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
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) 44.45 mm _{+/ - 0.25} (Equiv. 1.75 in.)
Material: Carbon Steel C45 Finish: Dry Rust Inhibitor Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
Part Number: K-0318-0318-4445A-C Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 2028
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 44.45 mm _{+/ - 0.25} (Equiv. 1.75 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0318-0318-4445BO-C Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 44.45 mm _{+/ - 0.25} (Equiv. 1.75 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0318-0318-4445BO-C Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 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) 44.45 mm _{+/ - 0.25} (Equiv. 1.75 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends)
Part Number: K-0318-0318-4445B-C (100 Pcs) Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $28.50 AUD Regular price ~~$34.20 AUD~~ Sale price $28.50 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 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) 44.45 mm _{+/ - 0.25} (Equiv. 1.75 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends)
Part Number: K-0318-0318-4445B-C (100 Pcs) Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $28.50 AUD Regular price ~~$34.20 AUD~~ Sale price $28.50 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
K-0318-0318-4445B-C (100 Pcs) --- Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Sale K-0318-0318-4445B-C (100 Pcs) --- Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key Regular price $28.50 AUD Regular price ~~$34.20 AUD~~ Sale price $28.50 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 50.80 mm _{+/ - 0.25} (Equiv. 2 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0318-0318-5080BO-C Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 50.80 mm _{+/ - 0.25} (Equiv. 2 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0318-0318-5080BO-C Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 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) 50.80 mm _{+/ - 0.25} (Equiv. 2 in.)
Material: Carbon Steel C45 Finish: Dry Rust Inhibitor Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
Part Number: K-0318-0318-5080A-C Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
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) 50.80 mm _{+/ - 0.25} (Equiv. 2 in.)
Material: Carbon Steel C45 Finish: Dry Rust Inhibitor Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
Part Number: K-0318-0318-5080A-C Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 2028
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 50.80 mm _{+/ - 0.25} (Equiv. 2 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0318-0318-5080AO-C Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0.051 / - 0.00} (Equiv. 0.125 in.)	Length (L) 50.80 mm _{+/ - 0.25} (Equiv. 2 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0318-0318-5080AO-C Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 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) 50.80 mm _{+/ - 0.25} (Equiv. 2 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0318-0318-5080B-C (50 Pcs) Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $15.32 AUD Regular price ~~$18.38 AUD~~ Sale price $15.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 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) 50.80 mm _{+/ - 0.25} (Equiv. 2 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0318-0318-5080B-C (50 Pcs) Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $15.32 AUD Regular price ~~$18.38 AUD~~ Sale price $15.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
K-0318-0318-5080B-C (50 Pcs) --- Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Sale K-0318-0318-5080B-C (50 Pcs) --- Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key Regular price $15.32 AUD Regular price ~~$18.38 AUD~~ Sale price $15.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
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) 57.15 mm _{+/ - 0.25} (Equiv. 2.25 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0318-0318-5715B-C (450 Pcs) Machine Keys - 3.18x3.18x57.15 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $156.14 AUD Regular price ~~$187.36 AUD~~ Sale price $156.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 450 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) 57.15 mm _{+/ - 0.25} (Equiv. 2.25 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0318-0318-5715B-C (450 Pcs) Machine Keys - 3.18x3.18x57.15 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $156.14 AUD Regular price ~~$187.36 AUD~~ Sale price $156.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 450 Quantity Required Backorder: Out of Stock.
K-0318-0318-5715B-C (450 Pcs) --- Machine Keys - 3.18x3.18x57.15 mm - Carbon Steel C45 Key Sale K-0318-0318-5715B-C (450 Pcs) --- Machine Keys - 3.18x3.18x57.15 mm - Carbon Steel C45 Key Regular price $156.14 AUD Regular price ~~$187.36 AUD~~ Sale price $156.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Width (W) 3.97 mm _{+ 0 / - 0.051} (Equiv. 0.156 in.)	Height (h) 3.97 mm _{+ 0 / - 0.051} (Equiv. 0.156 in.)	Length (L) 25.40 mm _{+/ - 0.25} (Equiv. 1 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0397-0397-2540B-C (100 Pcs) Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $34.59 AUD Regular price ~~$41.51 AUD~~ Sale price $34.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
Width (W) 3.97 mm _{+ 0 / - 0.051} (Equiv. 0.156 in.)	Height (h) 3.97 mm _{+ 0 / - 0.051} (Equiv. 0.156 in.)	Length (L) 25.40 mm _{+/ - 0.25} (Equiv. 1 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
Part Number: K-0397-0397-2540B-C (100 Pcs) Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $34.59 AUD Regular price ~~$41.51 AUD~~ Sale price $34.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
K-0397-0397-2540B-C (100 Pcs) --- Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Key Sale K-0397-0397-2540B-C (100 Pcs) --- Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Key Regular price $34.59 AUD Regular price ~~$41.51 AUD~~ Sale price $34.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Width (W) 3.97 mm _{+ 0.051 / - 0.00} (Equiv. 0.156 in.)	Height (h) 3.97 mm _{+ 0.051 / - 0.00} (Equiv. 0.156 in.)	Length (L) 25.40 mm _{+/ - 0.25} (Equiv. 1 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0397-0397-2540BO-Z (50 Pcs) Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Zinc Plated Key Out of Stock \| Backorder Now \| Orders can be expected around Sat, Oct 11, 2025 Regular price $30.05 AUD Regular price ~~$36.05 AUD~~ Sale price $30.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
Width (W) 3.97 mm _{+ 0.051 / - 0.00} (Equiv. 0.156 in.)	Height (h) 3.97 mm _{+ 0.051 / - 0.00} (Equiv. 0.156 in.)	Length (L) 25.40 mm _{+/ - 0.25} (Equiv. 1 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0397-0397-2540BO-Z (50 Pcs) Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Zinc Plated Key Out of Stock \| Backorder Now \| Orders can be expected around Sat, Oct 11, 2025 Regular price $30.05 AUD Regular price ~~$36.05 AUD~~ Sale price $30.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
K-0397-0397-2540BO-Z (50 Pcs) --- Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Zinc Plated Key Sale K-0397-0397-2540BO-Z (50 Pcs) --- Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Zinc Plated Key Regular price $30.05 AUD Regular price ~~$36.05 AUD~~ Sale price $30.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Width (W) 3.97 mm _{+ 0.051 / - 0.00} (Equiv. 0.156 in.)	Height (h) 3.97 mm _{+ 0.051 / - 0.00} (Equiv. 0.156 in.)	Length (L) 38.10 mm _{+/ - 0.25} (Equiv. 1.5 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0397-0397-3810BO-Z (950 Pcs) Machine Keys - 3.97x3.97x38.1 mm - Carbon Steel C45 Zinc Plated Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Nov 13, 2025 Regular price $1,265.95 AUD Regular price Sale price $1,265.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 950 Quantity Required Backorder: Out of Stock.
Width (W) 3.97 mm _{+ 0.051 / - 0.00} (Equiv. 0.156 in.)	Height (h) 3.97 mm _{+ 0.051 / - 0.00} (Equiv. 0.156 in.)	Length (L) 38.10 mm _{+/ - 0.25} (Equiv. 1.5 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0397-0397-3810BO-Z (950 Pcs) Machine Keys - 3.97x3.97x38.1 mm - Carbon Steel C45 Zinc Plated Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Nov 13, 2025 Regular price $1,265.95 AUD Regular price Sale price $1,265.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 950 Quantity Required Backorder: Out of Stock.
K-0397-0397-3810BO-Z (950 Pcs) --- Machine Keys - 3.97x3.97x38.1 mm - Carbon Steel C45 Zinc Plated Key K-0397-0397-3810BO-Z (950 Pcs) --- Machine Keys - 3.97x3.97x38.1 mm - Carbon Steel C45 Zinc Plated Key Regular price $1,265.95 AUD Regular price Sale price $1,265.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 8.00 mm _{+/ - 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0400-0400-0800BO-C Machine Keys - 4x4x8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 8.00 mm _{+/ - 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0400-0400-0800BO-C Machine Keys - 4x4x8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 2028
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) 8.00 mm _{+/ - 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
Part Number: K-0400-0400-0800A-C (10 Pcs) Machine Keys - 4x4x8 mm - Carbon Steel Key 19 units (190 pcs) Available Now \| Further orders can be expected around Fri, Dec 12, 2025 Regular price $6.41 AUD Regular price Sale price $6.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 10 Quantity Required 19 units (190 pcs) Available Now. Backorder if more than 19.
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) 8.00 mm _{+/ - 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
Part Number: K-0400-0400-0800A-C (10 Pcs) Machine Keys - 4x4x8 mm - Carbon Steel Key 19 units (190 pcs) Available Now \| Further orders can be expected around Fri, Dec 12, 2025 Regular price $6.41 AUD Regular price Sale price $6.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 10 Quantity Required 19 units (190 pcs) Available Now. Backorder if more than 19.
K-0400-0400-0800A-C (10 Pcs) --- Machine Keys - 4x4x8 mm - Carbon Steel Key K-0400-0400-0800A-C (10 Pcs) --- Machine Keys - 4x4x8 mm - Carbon Steel Key Regular price $6.41 AUD Regular price Sale price $6.41 AUD Unit price per Excludes GST and overseas Taxes & Duties 19 Available Now
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 8.00 mm _{+/ - 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0400-0400-0800AO-C Machine Keys - 4x4x8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 8.00 mm _{+/ - 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0400-0400-0800AO-C Machine Keys - 4x4x8 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 2028
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) 8.00 mm _{+/ - 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends)
Part Number: K-0400-0400-0800B-C (50 Pcs) Machine Keys - 4x4x8 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $48.05 AUD Regular price ~~$57.65 AUD~~ Sale price $48.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
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) 8.00 mm _{+/ - 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends)
Part Number: K-0400-0400-0800B-C (50 Pcs) Machine Keys - 4x4x8 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $48.05 AUD Regular price ~~$57.65 AUD~~ Sale price $48.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
K-0400-0400-0800B-C (50 Pcs) --- Machine Keys - 4x4x8 mm - Carbon Steel C45 Key Sale K-0400-0400-0800B-C (50 Pcs) --- Machine Keys - 4x4x8 mm - Carbon Steel C45 Key Regular price $48.05 AUD Regular price ~~$57.65 AUD~~ Sale price $48.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 10.00 mm _{+/ - 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0400-0400-1000BO-C Machine Keys - 4x4x10 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 10.00 mm _{+/ - 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0400-0400-1000BO-C Machine Keys - 4x4x10 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 2028
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 10.00 mm _{+/ - 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0400-0400-1000AO-C Machine Keys - 4x4x10 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 10.00 mm _{+/ - 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0400-0400-1000AO-C Machine Keys - 4x4x10 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 2028
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) 10.00 mm _{+/ - 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
Part Number: K-0400-0400-1000A-C (10 Pcs) Machine Keys - 4x4x10 mm - Carbon Steel Key 14 units (140 pcs) Available Now \| Further orders can be expected around Fri, Dec 12, 2025 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 10 Quantity Required 14 units (140 pcs) Available Now. Backorder if more than 14.
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) 10.00 mm _{+/ - 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
Part Number: K-0400-0400-1000A-C (10 Pcs) Machine Keys - 4x4x10 mm - Carbon Steel Key 14 units (140 pcs) Available Now \| Further orders can be expected around Fri, Dec 12, 2025 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 10 Quantity Required 14 units (140 pcs) Available Now. Backorder if more than 14.
K-0400-0400-1000A-C (10 Pcs) --- Machine Keys - 4x4x10 mm - Carbon Steel Key K-0400-0400-1000A-C (10 Pcs) --- Machine Keys - 4x4x10 mm - Carbon Steel Key Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Excludes GST and overseas Taxes & Duties 14 Available Now
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) 10.00 mm _{+/ - 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends)
Part Number: K-0400-0400-1000B-C (50 Pcs) Machine Keys - 4x4x10 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $48.32 AUD Regular price ~~$57.98 AUD~~ Sale price $48.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
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) 10.00 mm _{+/ - 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends)
Part Number: K-0400-0400-1000B-C (50 Pcs) Machine Keys - 4x4x10 mm - Carbon Steel C45 Key Out of Stock \| Backorder Now \| Orders can be expected around Thu, Oct 23, 2025 Regular price $48.32 AUD Regular price ~~$57.98 AUD~~ Sale price $48.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
K-0400-0400-1000B-C (50 Pcs) --- Machine Keys - 4x4x10 mm - Carbon Steel C45 Key Sale K-0400-0400-1000B-C (50 Pcs) --- Machine Keys - 4x4x10 mm - Carbon Steel C45 Key Regular price $48.32 AUD Regular price ~~$57.98 AUD~~ Sale price $48.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 12.00 mm _{+/ - 0.25} (Equiv. 0.472 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0400-0400-1200AO-C Machine Keys - 4x4x12 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity
Width (W) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Height (h) 4.00 mm _{+ 0.030 / - 0.0} (Equiv. 0.157 in.)	Length (L) 12.00 mm _{+/ - 0.25} (Equiv. 0.472 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: A (Rounded Ends)
Part Number: K-0400-0400-1200AO-C Machine Keys - 4x4x12 mm - Carbon Steel C45 Key Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 2028

Collection: Keys - Machine - Carbon Steel

Filter:

K-0318-0318-3810B-C (50 Pcs) --- Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Key

K-0318-0318-3810B-C (50 Pcs) --- Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Key

K-0318-0318-3810B-Z (5 Pcs) --- Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Zinc Plated Key

K-0318-0318-3810B-Z (5 Pcs) --- Machine Keys - 3.18x3.18x38.1 mm - Carbon Steel C45 Zinc Plated Key

K-0318-0318-4445B-C (100 Pcs) --- Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key

K-0318-0318-4445B-C (100 Pcs) --- Machine Keys - 3.18x3.18x44.45 mm - Carbon Steel C45 Key

K-0318-0318-5080B-C (50 Pcs) --- Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key

K-0318-0318-5080B-C (50 Pcs) --- Machine Keys - 3.18x3.18x50.8 mm - Carbon Steel C45 Key

K-0318-0318-5715B-C (450 Pcs) --- Machine Keys - 3.18x3.18x57.15 mm - Carbon Steel C45 Key

K-0318-0318-5715B-C (450 Pcs) --- Machine Keys - 3.18x3.18x57.15 mm - Carbon Steel C45 Key

K-0397-0397-2540B-C (100 Pcs) --- Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Key

K-0397-0397-2540B-C (100 Pcs) --- Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Key

K-0397-0397-2540BO-Z (50 Pcs) --- Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Zinc Plated Key

K-0397-0397-2540BO-Z (50 Pcs) --- Machine Keys - 3.97x3.97x25.4 mm - Carbon Steel C45 Zinc Plated Key

K-0397-0397-3810BO-Z (950 Pcs) --- Machine Keys - 3.97x3.97x38.1 mm - Carbon Steel C45 Zinc Plated Key

K-0397-0397-3810BO-Z (950 Pcs) --- Machine Keys - 3.97x3.97x38.1 mm - Carbon Steel C45 Zinc Plated Key

K-0400-0400-0800A-C (10 Pcs) --- Machine Keys - 4x4x8 mm - Carbon Steel Key

K-0400-0400-0800A-C (10 Pcs) --- Machine Keys - 4x4x8 mm - Carbon Steel Key

K-0400-0400-0800B-C (50 Pcs) --- Machine Keys - 4x4x8 mm - Carbon Steel C45 Key

K-0400-0400-0800B-C (50 Pcs) --- Machine Keys - 4x4x8 mm - Carbon Steel C45 Key

K-0400-0400-1000A-C (10 Pcs) --- Machine Keys - 4x4x10 mm - Carbon Steel Key

K-0400-0400-1000A-C (10 Pcs) --- Machine Keys - 4x4x10 mm - Carbon Steel Key

K-0400-0400-1000B-C (50 Pcs) --- Machine Keys - 4x4x10 mm - Carbon Steel C45 Key

K-0400-0400-1000B-C (50 Pcs) --- Machine Keys - 4x4x10 mm - Carbon Steel C45 Key

Country/region

Country/region

Collection: Keys - Machine - Carbon Steel

Filter

Filter

Subscribe to our emails