Value Collection -38277-3 Hammerlock Cotter Pin

Product Description

The VALUE COLLECTION -38277-3 is a hammerlock cotter pin designed to secure clevis pins, shafts, and fastener assemblies in mechanical and structural applications. It measures 5/16 inches in diameter and 3 inches in usable length, giving it a solid grip range for standard fastening tasks. Constructed from Grade 2 steel with a zinc-plated finish, this pin resists corrosion in moderate-exposure environments. The hammerlock design locks positively once installed, reducing the chance of unintentional release under vibration or lateral load. Maintenance mechanics, millwrights, and general contractors install this type of pin where a reusable, positive-lock fastener is required.

This hammerlock cotter pin fits standard applications across light industrial equipment, agricultural machinery, trailers, and general mechanical assemblies where a 5/16-inch pin diameter is specified. It is sold in a package quantity of 25, making it practical for shop stocking or job-site use where multiple fastener points must be secured. The zinc plating provides adequate protection for indoor and sheltered outdoor service.

Key Features

• Hammerlock design provides positive retention once seated
• 5/16 inches diameter fits standard clevis and shaft pin holes
• 3 inches usable length accommodates typical fastener stack thicknesses
• Grade 2 steel construction balances strength and workability
• Zinc-plated finish for corrosion resistance in moderate-exposure service
• Package quantity of 25 for shop stock or multi-point installations

Compatibility

Designed as an OEM-style replacement or service stock cotter pin for mechanical assemblies requiring a 5/16-inch hammerlock-style fastener.

Installation Notes

This pin is typically installed by maintenance mechanics or general tradespeople using basic hand tools. Always relieve load from the fastener assembly before removing or installing cotter pins. Ensure the pin hole diameter matches the 5/16-inch pin body before installation to prevent stress or binding. Inspect the pin seating after installation to confirm the hammerlock has engaged fully before returning the assembly to service.