3/8X2 1/2 Cotter Pin Zinc 5/8-18 NE and a 25mm length

and a 25mm length

They feature a unique internal tooth design that bites into the mating surface

The #12 External Tooth Lock Washer is a versatile and durable washer designed to prevent loosening in threaded assemblies

and it is designed to be used in applications where a strong

3/8X2 1/2 Cotter Pin Zinc 5/8-18 NE and a 25mm lengthThe 3 8 x 2 1 2 inch Cotter Pin is a zinc plated steel pin used to secure a clevis pin or other fastener. It has a T handle on one end and a split shank on the other. The split shank is inserted through the holes in the clevis pin and the T handle is bent over to hold the pin in place. The zinc plating provides corrosion resistance and extends the life of the pin. Cotter pins are commonly used in automotive, marine, and industrial applications.