3/8" x 3" Cotter Pins – Carbon Steel, Zinc CR+3

Secure heavy‑duty and long fastener assemblies with robust 3/8" x 3" cotter pins manufactured from carbon steel and finished with Zinc CR+3 plating for enhanced corrosion resistance. Designed to lock clevis pins, castle nuts, and bolts in place, these cotter pins are easy to install and bend for a tight, vibration‑resistant hold. Ideal for automotive, industrial, agricultural, and general hardware applications, they deliver reliable retention and long‑lasting performance in demanding indoor and outdoor environments.