Value Collection P20289 Hair Pin Cotter Spring Steel

Product Description

The VALUE COLLECTION P20289 is a hair pin cotter designed to secure pins, shafts, and fasteners in light-duty mechanical assemblies. This clip-style retainer accepts a maximum shaft diameter of 1/8 inch and measures 19/32 inch in overall length, with a wire diameter of 0.03 inch. Manufactured from Grade 2 spring steel with a zinc-plated finish, it delivers corrosion resistance and reliable spring tension in standard fastening applications. Machinists, maintenance technicians, and assembly workers install this type of retainer where a quick-release, reusable pin lock is needed without threaded hardware.

Hair pin cotters in this size range are commonly used in light industrial equipment, agricultural machinery linkages, HVAC damper linkage assemblies, and general mechanical fabrication. They are well-suited to applications where frequent disassembly is required and where a solid cotter or roll pin would be impractical. The zinc-plated finish makes P20289 appropriate for indoor and light outdoor environments where moderate moisture resistance is acceptable.

Key Features

• Hair pin cotter style for quick installation and removal without tools
• Grade 2 spring steel construction provides consistent retention force
• Zinc-plated finish offers corrosion resistance for general-purpose use
• 0.03 inch wire diameter suited to light-duty retaining applications
• Compact 19/32 inch length fits tight clearance assemblies

Compatibility

Designed as an OEM-style replacement or standard hardware component for mechanical assemblies requiring a hair pin cotter with a maximum shaft diameter of 1/8 inch.

Installation Notes

Hair pin cotters are installed and removed by hand or with needle-nose pliers. Ensure the shaft or pin groove is free of burrs or debris before seating the cotter to prevent deformation of the wire. Verify that the selected cotter matches the shaft diameter before installation, as an oversized or undersized fit will compromise retention. Follow applicable machinery safety lockout and tagout procedures before servicing any assembly that uses this fastener.