M2/M2.5/M3/M4 Galvanized Split Elastic Pin/Shaft Pin/U-type Iron Pin/Hairpin Cotter Pin/Retaining Pin for Machinery and Mechanical Assembly

Our Galvanized Split Elastic Pins, also known as Shaft Pins, U-Type Iron Pins, Hairpin Cotter Pins, and Retaining Pins, are high-reliability industrial fasteners designed for securing shafts, bolts, and components in machinery, equipment, and automotive applications. Crafted from high-quality iron with a galvanized finish, these pins offer exceptional rust resistance, corrosion protection, and durability, ensuring long-term performance in harsh industrial and mechanical environments.

 

Available in four versatile standard sizes (M2, M2.5, M3, M4), this multi-type pin set includes split elastic pins, U-shaped hairpin cotter pins, and retaining pins—suitable for a wide range of fastening and locking needs. The split elastic design allows for easy installation and secure retention, while the U-type/hairpin structure provides quick, reliable locking for bolts and shafts, preventing loosening during operation.

 

These galvanized retaining pins are widely applicable to mechanical assembly, equipment maintenance, automotive repairs, industrial machinery, agricultural equipment, and DIY hardware projects. They are easy to install and remove, compatible with standard bolts and shafts, and deliver consistent, reliable performance for both professional and casual use. Whether securing components in machinery or locking bolts in automotive parts, these multi-type pins combine versatility, durability, and corrosion resistance to meet all your industrial fastening needs.