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Miniature Bearings Australia - minibearings

Width (W)	Height (h)	Length (L)	Indicative Image
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) 15.00 mm _{+/ - 0.25} (Equiv. 0.591 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0300-0300-1500BO-C Machine Keys - 3x3x15 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) 3.00 mm _{+ 0.025 / - 0.0} (Equiv. 0.118 in.)	Height (h) 3.00 mm _{+ 0.025 / - 0.00} (Equiv. 0.118 in.)	Length (L) 15.00 mm _{+/ - 0.25} (Equiv. 0.591 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Oversized End Type: B (Square Ends)
Part Number: K-0300-0300-1500BO-C Machine Keys - 3x3x15 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) 3.00 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Fri, Dec 12, 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 50 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Fri, Dec 12, 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 50 Quantity Required Backorder: Out of Stock.
K-0300-0300-1600A-C (50 Pcs) --- Machine Keys - 3x3x16 mm - Carbon Steel Key Sale K-0300-0300-1600A-C (50 Pcs) --- Machine Keys - 3x3x16 mm - Carbon Steel 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) 3.00 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Sat, Oct 11, 2025 Regular price $29.05 AUD Regular price ~~$34.85 AUD~~ Sale price $29.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Sat, Oct 11, 2025 Regular price $29.05 AUD Regular price ~~$34.85 AUD~~ Sale price $29.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
K-0300-0300-1800A-C (50 Pcs) --- Machine Keys - 3x3x18 mm - Carbon Steel Key Sale K-0300-0300-1800A-C (50 Pcs) --- Machine Keys - 3x3x18 mm - Carbon Steel Key Regular price $29.05 AUD Regular price ~~$34.85 AUD~~ Sale price $29.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
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.)
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.)
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 Thu, Jun 08, 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Sat, Oct 11, 2025 Regular price $6.59 AUD Regular price Sale price $6.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 10 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Sat, Oct 11, 2025 Regular price $6.59 AUD Regular price Sale price $6.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 10 Quantity Required 128 units (1280 pcs) Available Now. Backorder if more than 128.
K-0300-0300-2000A-C (10 Pcs) --- Machine Keys - 3x3x20 mm - Carbon Steel Key K-0300-0300-2000A-C (10 Pcs) --- Machine Keys - 3x3x20 mm - Carbon Steel Key Regular price $6.59 AUD Regular price Sale price $6.59 AUD Unit price per Excludes GST and overseas Taxes & Duties 128 Available Now
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.)
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.)
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 Thu, Jun 08, 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.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends)
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 Thu, Oct 23, 2025 Regular price $115.59 AUD Regular price ~~$138.71 AUD~~ Sale price $115.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 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.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends)
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 Thu, Oct 23, 2025 Regular price $115.59 AUD Regular price ~~$138.71 AUD~~ Sale price $115.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
K-0300-0300-2000B-C (100 Pcs) --- Machine Keys - 3x3x20 mm - Carbon Steel C45 Key Sale K-0300-0300-2000B-C (100 Pcs) --- Machine Keys - 3x3x20 mm - Carbon Steel C45 Key Regular price $115.59 AUD Regular price ~~$138.71 AUD~~ Sale price $115.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 Thu, Jun 08, 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Fri, Dec 12, 2025 Regular price $3.95 AUD Regular price Sale price $3.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 5 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Fri, Dec 12, 2025 Regular price $3.95 AUD Regular price Sale price $3.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 5 Quantity Required 9 units (45 pcs) Available Now. Backorder if more than 9.
K-0300-0300-2500A-C (5 Pcs) --- Machine Keys - 3x3x25 mm - Carbon Steel Key K-0300-0300-2500A-C (5 Pcs) --- Machine Keys - 3x3x25 mm - Carbon Steel Key Regular price $3.95 AUD Regular price Sale price $3.95 AUD Unit price per Excludes GST and overseas Taxes & Duties 9 Available Now
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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 Thu, Jun 08, 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.)
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.)
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 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) 6.35 mm _{+/ - 0.25} (Equiv. 0.25 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
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 Thu, Oct 23, 2025 Regular price $24.23 AUD Regular price ~~$29.07 AUD~~ Sale price $24.23 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) 6.35 mm _{+/ - 0.25} (Equiv. 0.25 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
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 Thu, Oct 23, 2025 Regular price $24.23 AUD Regular price ~~$29.07 AUD~~ Sale price $24.23 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
K-0318-0318-0635B-C (100 Pcs) --- Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key Sale K-0318-0318-0635B-C (100 Pcs) --- Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key Regular price $24.23 AUD Regular price ~~$29.07 AUD~~ Sale price $24.23 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) 9.53 mm _{+/ - 0.25} (Equiv. 0.375 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
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 Thu, Oct 23, 2025 Regular price $22.23 AUD Regular price ~~$26.67 AUD~~ Sale price $22.23 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) 9.53 mm _{+/ - 0.25} (Equiv. 0.375 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
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 Thu, Oct 23, 2025 Regular price $22.23 AUD Regular price ~~$26.67 AUD~~ Sale price $22.23 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
K-0318-0318-0953B-C (100 Pcs) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key Sale K-0318-0318-0953B-C (100 Pcs) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key Regular price $22.23 AUD Regular price ~~$26.67 AUD~~ Sale price $22.23 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) 9.53 mm _{+/ - 0.25} (Equiv. 0.375 in.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 12, 2025 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Each 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 12, 2025 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required Backorder: Out of Stock.
K-0318-0318-0953A-C --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key K-0318-0318-0953A-C --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
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.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
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 Thu, Oct 23, 2025 Regular price $20.14 AUD Regular price ~~$24.16 AUD~~ Sale price $20.14 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) 11.11 mm _{+/ - 0.25} (Equiv. 0.437 in.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard End Type: B (Square Ends)
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 Thu, Oct 23, 2025 Regular price $20.14 AUD Regular price ~~$24.16 AUD~~ Sale price $20.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 50 Quantity Required Backorder: Out of Stock.
K-0318-0318-1111B-C (50 Pcs) --- Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key Sale K-0318-0318-1111B-C (50 Pcs) --- Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key Regular price $20.14 AUD Regular price ~~$24.16 AUD~~ Sale price $20.14 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) 12.70 mm _{+/ - 0.25} (Equiv. 0.5 in.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Sat, Oct 11, 2025 Regular price $2.14 AUD Regular price ~~$3.74 AUD~~ Sale price $2.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Each 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.)
Material: Carbon Steel Finish: Plain Tolerance Type: Standard Undersized End Type: A (Rounded Ends)
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 Sat, Oct 11, 2025 Regular price $2.14 AUD Regular price ~~$3.74 AUD~~ Sale price $2.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 44 Available Now. Backorder if more than 44.
K-0318-0318-1270A-C --- Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key Sale K-0318-0318-1270A-C --- Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key Regular price $2.14 AUD Regular price ~~$3.74 AUD~~ Sale price $2.14 AUD Unit price per Excludes GST and overseas Taxes & Duties 44 Available Now Sale

Miniature Bearings Australia Pty Ltd
3/8 Boyland Avenue
Coopers Plains, Queensland, Australia.
(ABN: 94 069 113 800)