Cotter Pin Stainless Steel SS300 (Inch)

Our Stainless Steel SS300 Cotter Pins provide durable, corrosion‑resistant mechanical locking for a wide range of industrial, marine, automotive, and general fastening applications. Manufactured from SS300 series stainless steel (300‑series stainless), these cotter pins offer excellent resistance to rust, moisture, oxidation, and environmental exposure, making them ideal for both indoor and outdoor use.

Designed for simple and reliable retention, these cotter pins are installed by inserting through a drilled hole and spreading the prongs to secure clevis pins, shafts, castle nuts, and other fastened components. Their stainless construction ensures long service life, clean appearance, and dependable holding strength in vibration‑prone or corrosive environments.