Value Collection R57700779 Coiled Spring Pin 0.125in Alloy Steel

Product Description

The VALUE COLLECTION R57700779 is a coiled spring pin manufactured from 1070/1090 alloy steel with a plain finish. Coiled spring pins are slotted cylindrical fasteners that compress radially during installation, creating a spring-loaded interference fit within a drilled hole. This pin measures 0.125 inches in diameter and 1.125 inches in overall length. The coiled construction distributes stress evenly around the pin body, making it well-suited for applications subject to vibration, shock, or dynamic loading. Installation requires no special adhesive or locking compound. The plain finish is standard for general industrial and mechanical assembly use.

This coiled spring pin is used in general mechanical assemblies, light industrial equipment, and component alignment applications where a reliable, removable locating or retention pin is needed. The 0.125-inch diameter fits standard drilled holes in metal, plastic, and composite components. Typical applications include shaft-to-hub connections, hinge pins, and indexed positioning in machinery and tooling. This pin does not meet military specifications and is intended for commercial-grade applications.

Key Features

• Coiled construction distributes radial stress evenly for improved fatigue resistance
• 0.125-inch diameter and 1.125-inch overall length for a compact form factor
• 1070/1090 alloy steel material provides solid shear and tensile strength
• Plain finish suitable for general industrial and mechanical environments
• Inch measurement system for compatibility with standard imperial drilled holes

Compatibility

Designed as a standard coiled spring pin for general-purpose mechanical and industrial assembly applications requiring a 0.125-inch diameter hole.

Installation Notes

Coiled spring pins are typically installed by machinists, millwrights, or assembly technicians using a pin punch and hammer or an arbor press. Ensure the receiving hole is drilled and reamed to the correct diameter before installation to achieve proper interference fit. Secure or de-energize any associated machinery before pin installation or removal. Removing a coiled spring pin requires a punch slightly smaller than the pin diameter to avoid damaging the bore.