Value Collection R57700763 Coiled Spring Pin 0.125 in Alloy Steel

Product Description

The VALUE COLLECTION R57700763 is a coiled spring pin designed for fastening and locating applications in mechanical assemblies. At 0.125 inches in diameter and 5/16 inches in overall length, this pin is engineered for tight-tolerance installations where consistent radial pressure and vibration resistance are required. Manufactured from 1070-1090 alloy steel with a plain finish, it provides reliable holding strength in moderate-duty applications. This pin is installed by pressing or driving it into a drilled hole, where the coiled body compresses and exerts outward spring force against the hole wall to maintain position.

This coiled spring pin suits residential and commercial maintenance, machinery assembly, and general mechanical fabrication work. It is typically used by millwrights, machinists, and maintenance technicians to secure components such as shafts, linkages, clevis pins, and similar hardware. The compact 0.125-inch diameter makes it appropriate for small-bore applications where space is limited and precise alignment is critical.

Key Features

• Coiled design provides consistent radial spring force for secure retention in drilled holes
• 1070-1090 alloy steel construction offers reliable tensile and shear strength for moderate-duty use
• Plain finish suitable for dry or lightly lubricated environments
• 0.125-inch diameter and 5/16-inch length fits tight-clearance fastening applications
• Does not meet military specifications — intended for standard commercial applications

Compatibility

Designed as a standard coiled spring pin for general-purpose mechanical assemblies requiring a 0.125-inch diameter roll pin in inch-measurement systems.

Installation Notes

Installation is performed by machinists, millwrights, or qualified maintenance technicians. Always ensure the receiving hole is drilled and reamed to the correct tolerance before driving the pin to avoid splitting or improper seating. Use a proper pin punch and hammer or an arbor press to drive the pin flush or to the specified depth. Remove all power, pressure, and motion sources from the assembly before installing or removing spring pins in live machinery.