Value Collection C3503 Hair Pin Cotter 1-3/16 in Long

Product Description

The VALUE COLLECTION C3503 is a hair pin cotter designed to secure shafts, pins, and fasteners against axial movement in mechanical assemblies. Made from Grade 2 spring steel with a plain steel finish, this cotter fits shaft diameters from 0.25 to 0.375 inches and measures 1.1875 inches in overall length with a wire diameter of 0.08 inches. The spring-steel construction provides consistent retention force and resistance to accidental release during operation. Millwrights, maintenance technicians, and mechanical assemblers install hair pin cotters across a wide range of industrial and trade applications where quick assembly and positive pin retention are required.

The C3503 hair pin cotter is suited for light-to-medium duty mechanical assemblies where shaft or clevis pin retention is needed. Typical applications include linkage assemblies, clevis joints, control rods, and pivot pins found in HVAC equipment, plumbing fixtures, pump assemblies, and general industrial machinery. The compact wire-form design allows fast hand installation and removal without special tooling, making it practical for field service work and production assembly alike.

Key Features

• Fits shaft diameters from 0.25 to 0.375 inches for versatile fitment across common pin sizes
• Grade 2 spring steel construction provides reliable retention force and resists deformation
• Plain steel finish suitable for general-purpose indoor and protected mechanical environments
• Wire diameter of 0.08 inches balances flexibility with secure grip on the shaft
• Overall length of 1.1875 inches accommodates standard clevis and linkage pin assemblies
• Tool-free installation and removal speeds up service and assembly workflows

Compatibility

Designed as a general-purpose hair pin cotter for mechanical assemblies requiring shaft retention on pins with diameters between 0.25 and 0.375 inches.

Installation Notes

Hair pin cotters are installed and removed by hand or with needle-nose pliers. Always de-energize or lock out the equipment before servicing any pinned linkage or mechanical assembly. Ensure the shaft or pin groove is clean and free of burrs before seating the cotter. Inspect the cotter for deformation or fatigue before reuse and replace if the spring tension feels reduced.