Overview
This 304 Stainless Steel Cotter Pin is engineered for high-reliability fastening in demanding industrial and commercial environments. Designed for use in a 5/16-inch nominal hole, it provides a secure, semi-permanent locking mechanism for clevis pins, shafts, axles, and other castellated nuts or drilled bolt applications. Its austenitic stainless steel construction delivers superior corrosion resistance, making it suitable for use in wet, humid, or chemically aggressive conditions where ordinary steel pins would fail. Supplied in a bulk package of 1000 pieces, this cotter pin is an economical and durable solution for maintenance, repair, and assembly operations requiring consistent, high-volume fastener supply.
Key Features
Manufactured from corrosion-resistant 304 stainless steel Plain finish provides excellent oxidation resistance 0.197-inch diameter for a secure fit in standard 5/16-inch holes 2.362-inch overall length for versatile application Austenitic material grade ensures good mechanical strength and ductility Bulk packaging of 1000 units supports high-volume usage and inventory efficiency Simple installation and removal with standard hand tools Non-magnetic properties suitable for specialized applications
Specifications
Material: 304 Stainless Steel Finish: Plain Pin Diameter: 0.197 inches Overall Length: 2.362 inches Recommended Hole Size: 5/16 inch nominal System of Measurement: Inch Thread Size: None Package Quantity: 1000 pieces
Applications
Securing hitch pins and clevis pins in agricultural and construction equipment Locking castellated nuts on wheel bearings and axle assemblies General industrial maintenance and machinery assembly Marine and coastal applications requiring corrosion resistance Material handling equipment and trailer components Manufacturing jigs, fixtures, and safety-critical linkages








