Split Cotter Pin Sizes

A split pin also known in the united states as a cotter pin or cotter key is a metal fastener with two tines that are bent during installation similar to a staple or rivet typically made of thick wire with a half circular cross section split pins come in multiple sizes and types.

Split cotter pin sizes.

The sizes below 5 16 inch are intended to fit a hole 1 64 inch larger than the pin size. The biggest standard cotter pin available has a diameter of of an inch. It is used for locking and to hold an object in place. Due to the loose fit required for cotter pins the metric range doubles for inch sizes.

Choose from our selection of hairpin cotter pins including over 800 products in a wide range of styles and sizes. View parts by clicking on the following link. Diameters ranging from m1 to m13 up to 140mm long in steel as well as stainless steel a2 and a4. A cotter pin is a fastener that is placed through two holes on one end of a clevis pin.

Shape of the split pin ends at the manufacturer s discretion. The nominal length l is with tolerance js17. Our specifications follow din 94 which is equivalent to iso 1234 and bs 1574. Split cotter pins our range of cotter pins are stocked in diameters 1mm to 13mm in mild steel usually zinc plated 1mm to 6 3mm in stainless steel a4 and brass.

For the split pin hole tolerance h13 is recommended for d nom 1 2 mm and tolerance h14 for d nom 1 6 mm and above. Split pin cotter pin. Learn more about metric g304 g316 cotter pins offered by united fasteners. Our specifications follow din 94 which is equivalent to iso 1234 and bs 1574.

For pins larger than that the pin and hole size are the same. It is commonly split in the middle and has two tines that can be bent around the nut or bolt to secure machinery. The following sizes din 93 single tab safety lock washers are available for immediate shipping from stock. Due to the loose fit required for cotter pins the metric range doubles for inch sizes.

Lengths are not standardized. Metric din 94 split pins cotter pins. The british definition of cotter pin is equivalent to u s. In stock and ready to ship.

Lengths of cotter pins aren t standardized so you should shop around to get the best option for you. American standard cotter pin sizes are in nominal fractional inches starting at 1 32.