Keys - Machine - Carbon Steel– Page3 – Miniature Bearings Australia

Width (W)	Height (h)	Length (L)	Indicative Image
Machine Keys - 3x3x15 mm - Carbon Steel C45 Key
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.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends) Additional stock available from USA subject to Prior Sale = 437
Part Number: K-0300-0300-1500B-C (Pack of 50) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $48.68 AUD Regular price ~~$57.42 AUD~~ Sale price $48.68 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Width (W)	Height (h)	Length (L)	Indicative Image
Machine Keys - 3x3x15 mm - Carbon Steel C45 Key
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.)
Material: Carbon Steel C45 Finish: Plain Tolerance Type: Standard Undersized End Type: B (Square Ends) Additional stock available from USA subject to Prior Sale = 437
Part Number: K-0300-0300-1500B-C (Pack of 50) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $48.68 AUD Regular price ~~$57.42 AUD~~ Sale price $48.68 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
K-0300-0300-1500B-C (Pack of 50) --- Machine Keys - 3x3x15 mm - Carbon Steel C45 Key Sale K-0300-0300-1500B-C (Pack of 50) --- Machine Keys - 3x3x15 mm - Carbon Steel C45 Key Regular price $48.68 AUD Regular price ~~$57.42 AUD~~ Sale price $48.68 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Machine Keys - 3x3x16 mm - Carbon Steel Key
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 (Pack of 50) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Sep 09, 2026 Regular price $33.50 AUD Regular price ~~$39.20 AUD~~ Sale price $33.50 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Machine Keys - 3x3x16 mm - Carbon Steel Key
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 (Pack of 50) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Sep 09, 2026 Regular price $33.50 AUD Regular price ~~$39.20 AUD~~ Sale price $33.50 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
K-0300-0300-1600A-C (Pack of 50) --- Machine Keys - 3x3x16 mm - Carbon Steel Key Sale K-0300-0300-1600A-C (Pack of 50) --- Machine Keys - 3x3x16 mm - Carbon Steel Key Regular price $33.50 AUD Regular price ~~$39.20 AUD~~ Sale price $33.50 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Machine Keys - 3x3x18 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 528
Part Number: K-0300-0300-1800A-C (Pack of 50) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $34.05 AUD Regular price ~~$39.85 AUD~~ Sale price $34.05 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Machine Keys - 3x3x18 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 528
Part Number: K-0300-0300-1800A-C (Pack of 50) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $34.05 AUD Regular price ~~$39.85 AUD~~ Sale price $34.05 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
K-0300-0300-1800A-C (Pack of 50) --- Machine Keys - 3x3x18 mm - Carbon Steel Key Sale K-0300-0300-1800A-C (Pack of 50) --- Machine Keys - 3x3x18 mm - Carbon Steel Key Regular price $34.05 AUD Regular price ~~$39.85 AUD~~ Sale price $34.05 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Machine Keys - 3x3x20 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 1410
Part Number: K-0300-0300-2000A-C (Pack of 10) 127 units (1270 pcs) Available Now \| Further orders can be expected around Wed, Aug 19, 2026 Regular price $7.86 AUD Regular price Sale price $7.86 AUD Unit price per Priced, Stocked and Sold Per 10 Units Excludes GST and overseas Taxes & Duties Quantity Required Larger quantities than the 127 available can be backordered.
Machine Keys - 3x3x20 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 1410
Part Number: K-0300-0300-2000A-C (Pack of 10) 127 units (1270 pcs) Available Now \| Further orders can be expected around Wed, Aug 19, 2026 Regular price $7.86 AUD Regular price Sale price $7.86 AUD Unit price per Priced, Stocked and Sold Per 10 Units Excludes GST and overseas Taxes & Duties Quantity Required 127 units (1270 pcs) Available Now. Backorder if more than 127.
K-0300-0300-2000A-C (Pack of 10) --- Machine Keys - 3x3x20 mm - Carbon Steel Key K-0300-0300-2000A-C (Pack of 10) --- Machine Keys - 3x3x20 mm - Carbon Steel Key Regular price $7.86 AUD Regular price Sale price $7.86 AUD Unit price per Priced, Stocked and Sold Per 10 Units Excludes GST and overseas Taxes & Duties 127 Available Now
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
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) Additional stock available from USA subject to Prior Sale = 198
Part Number: K-0300-0300-2000B-C (Pack of 100) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $124.77 AUD Regular price ~~$148.13 AUD~~ Sale price $124.77 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
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) Additional stock available from USA subject to Prior Sale = 198
Part Number: K-0300-0300-2000B-C (Pack of 100) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $124.77 AUD Regular price ~~$148.13 AUD~~ Sale price $124.77 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
K-0300-0300-2000B-C (Pack of 100) --- Machine Keys - 3x3x20 mm - Carbon Steel C45 Key Sale K-0300-0300-2000B-C (Pack of 100) --- Machine Keys - 3x3x20 mm - Carbon Steel C45 Key Regular price $124.77 AUD Regular price ~~$148.13 AUD~~ Sale price $124.77 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x20 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x25 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 654
Part Number: K-0300-0300-2500A-C (Pack of 5) 8 units (40 pcs) Available Now \| Further orders can be expected around Wed, Aug 19, 2026 Regular price $4.50 AUD Regular price Sale price $4.50 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties Quantity Required Larger quantities than the 8 available can be backordered.
Machine Keys - 3x3x25 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 654
Part Number: K-0300-0300-2500A-C (Pack of 5) 8 units (40 pcs) Available Now \| Further orders can be expected around Wed, Aug 19, 2026 Regular price $4.50 AUD Regular price Sale price $4.50 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties Quantity Required 8 units (40 pcs) Available Now. Backorder if more than 8.
K-0300-0300-2500A-C (Pack of 5) --- Machine Keys - 3x3x25 mm - Carbon Steel Key K-0300-0300-2500A-C (Pack of 5) --- Machine Keys - 3x3x25 mm - Carbon Steel Key Regular price $4.50 AUD Regular price Sale price $4.50 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties 8 Available Now
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x25 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x30 mm - Carbon Steel Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x30 mm - Carbon Steel Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x30 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x40 mm - Carbon Steel C45 Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3x3x40 mm - Carbon Steel Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity
Machine Keys - 3x3x40 mm - Carbon Steel Key
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 (Each) Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Backorder now for delivery around Mon, Apr 16, 2029
Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key
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) Additional stock available from USA subject to Prior Sale = 1226
Part Number: K-0318-0318-0635B-C (Pack of 100) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $30.41 AUD Regular price ~~$35.49 AUD~~ Sale price $30.41 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key
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) Additional stock available from USA subject to Prior Sale = 1226
Part Number: K-0318-0318-0635B-C (Pack of 100) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $30.41 AUD Regular price ~~$35.49 AUD~~ Sale price $30.41 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
K-0318-0318-0635B-C (Pack of 100) --- Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key Sale K-0318-0318-0635B-C (Pack of 100) --- Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key Regular price $30.41 AUD Regular price ~~$35.49 AUD~~ Sale price $30.41 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 242
Part Number: K-0318-0318-0953A-C (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Thu, Aug 27, 2026 Regular price $17.77 AUD Regular price Sale price $17.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 242
Part Number: K-0318-0318-0953A-C (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Thu, Aug 27, 2026 Regular price $17.77 AUD Regular price Sale price $17.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
K-0318-0318-0953A-C (Each) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key K-0318-0318-0953A-C (Each) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key Regular price $17.77 AUD Regular price Sale price $17.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key
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) Additional stock available from USA subject to Prior Sale = 1264
Part Number: K-0318-0318-0953B-C (Pack of 100) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $28.23 AUD Regular price ~~$32.87 AUD~~ Sale price $28.23 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key
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) Additional stock available from USA subject to Prior Sale = 1264
Part Number: K-0318-0318-0953B-C (Pack of 100) Out of Stock \| Backorder Now \| Backorder now for delivery around Wed, Aug 19, 2026 Regular price $28.23 AUD Regular price ~~$32.87 AUD~~ Sale price $28.23 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
K-0318-0318-0953B-C (Pack of 100) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key Sale K-0318-0318-0953B-C (Pack of 100) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key Regular price $28.23 AUD Regular price ~~$32.87 AUD~~ Sale price $28.23 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key
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 (Pack of 50) Out of Stock \| Backorder Now \| Backorder now for delivery around Tue, Aug 25, 2026 Regular price $25.95 AUD Regular price ~~$30.15 AUD~~ Sale price $25.95 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key
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 (Pack of 50) Out of Stock \| Backorder Now \| Backorder now for delivery around Tue, Aug 25, 2026 Regular price $25.95 AUD Regular price ~~$30.15 AUD~~ Sale price $25.95 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
K-0318-0318-1111B-C (Pack of 50) --- Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key Sale K-0318-0318-1111B-C (Pack of 50) --- Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key Regular price $25.95 AUD Regular price ~~$30.15 AUD~~ Sale price $25.95 AUD Unit price per Priced, Stocked and Sold Per 50 Units Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 1647
Part Number: K-0318-0318-1270A-C (Each) 44 Available Now \| Further orders can be expected around Wed, Aug 19, 2026 Regular price $2.05 AUD Regular price ~~$2.79 AUD~~ Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Larger quantities than the 44 available can be backordered.
Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key
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) Additional stock available from USA subject to Prior Sale = 1647
Part Number: K-0318-0318-1270A-C (Each) 44 Available Now \| Further orders can be expected around Wed, Aug 19, 2026 Regular price $2.05 AUD Regular price ~~$2.79 AUD~~ Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 44 Available Now. Backorder if more than 44.
K-0318-0318-1270A-C (Each) --- Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key Sale K-0318-0318-1270A-C (Each) --- Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key Regular price $2.05 AUD Regular price ~~$2.79 AUD~~ Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 44 Available Now Sale

Miniature Bearings Australia

Collection: Keys - Machine - Carbon Steel

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K-0300-0300-1500B-C (Pack of 50) --- Machine Keys - 3x3x15 mm - Carbon Steel C45 Key

K-0300-0300-1500B-C (Pack of 50) --- Machine Keys - 3x3x15 mm - Carbon Steel C45 Key

K-0300-0300-1600A-C (Pack of 50) --- Machine Keys - 3x3x16 mm - Carbon Steel Key

K-0300-0300-1600A-C (Pack of 50) --- Machine Keys - 3x3x16 mm - Carbon Steel Key

K-0300-0300-1800A-C (Pack of 50) --- Machine Keys - 3x3x18 mm - Carbon Steel Key

K-0300-0300-1800A-C (Pack of 50) --- Machine Keys - 3x3x18 mm - Carbon Steel Key

K-0300-0300-2000A-C (Pack of 10) --- Machine Keys - 3x3x20 mm - Carbon Steel Key

K-0300-0300-2000A-C (Pack of 10) --- Machine Keys - 3x3x20 mm - Carbon Steel Key

K-0300-0300-2000B-C (Pack of 100) --- Machine Keys - 3x3x20 mm - Carbon Steel C45 Key

K-0300-0300-2000B-C (Pack of 100) --- Machine Keys - 3x3x20 mm - Carbon Steel C45 Key

K-0300-0300-2500A-C (Pack of 5) --- Machine Keys - 3x3x25 mm - Carbon Steel Key

K-0300-0300-2500A-C (Pack of 5) --- Machine Keys - 3x3x25 mm - Carbon Steel Key

K-0318-0318-0635B-C (Pack of 100) --- Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key

K-0318-0318-0635B-C (Pack of 100) --- Machine Keys - 3.18x3.18x6.35 mm - Carbon Steel C45 Key

K-0318-0318-0953A-C (Each) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key

K-0318-0318-0953A-C (Each) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel Key

K-0318-0318-0953B-C (Pack of 100) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key

K-0318-0318-0953B-C (Pack of 100) --- Machine Keys - 3.18x3.18x9.53 mm - Carbon Steel C45 Key

K-0318-0318-1111B-C (Pack of 50) --- Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key

K-0318-0318-1111B-C (Pack of 50) --- Machine Keys - 3.18x3.18x11.11 mm - Carbon Steel C45 Key

K-0318-0318-1270A-C (Each) --- Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key

K-0318-0318-1270A-C (Each) --- Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key

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Miniature Bearings Australia

Collection: Keys - Machine - Carbon Steel

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