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Cotter Pins

Available1,045 products
Cotter pins, also called split pins, insert into holes in clevis pins, shafts, and other components to lock components in place. They feature a split-end design that inserts through the mounting surface, expands on the back side, and is folded back to prevent the pin from pulling out. This provides a solid yet removable connection between the components being assembled.

Extended-Prong Cotter Pins

Extended-Prong Cotter Pins
Extended prong cotter pins are similar to standard cotter pins but are manufactured with longer legs. They are specialty items used for custom manufacturing and repair work because they can be cut to size.

Inch

Plain 316 Brass

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Zinc Plated Ungraded Steel

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Plain 1008 Steel

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Zinc Plated 1008 Steel

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Plain 18-8 Stainless Steel

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Zinc Plated 18-8 Stainless Steel

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Plain 316 Stainless Steel

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Plain Ungraded Brass

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Metric

Zinc Plated Ungraded Steel

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Plain 18-8 Stainless Steel

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Plain 316 Stainless Steel

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Bridge Pins

Bridge Pins
Bridge pins, also called R-clips or hitch pin clips, insert into the ends of hitch or clevis pins to secure them in place. They feature a wave-patterned leg that secures the pin and resists pull-out from vibration and accidental contact.

Hammerlock Cotter Pins

Hammerlock Cotter Pins
Hammerlock cotter pins, sometimes called castle keys or castle nut cotters, are inserted into holes in an assembly and secure castle nuts in place against vibration and other loads. They are formed so that when hammered into place their legs expand, locking the pin in position. Unlike other cotter pins, they are not reusable as the installation process permanently deforms their legs and heads.

Cotter Pin Assortments

Cotter Pin Assortments

Cotter pin assortments contain sets of various sizes of cotter pins. They are ideal for high-volume environments where the same pins are used repeatedly, such as repair shops and production areas.

Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.