Value Collection R57700785 Coiled Spring Pin 0.1563 in

Product Description

The VALUE COLLECTION R57700785 is a coiled spring pin manufactured from 1070-1090 alloy steel with a plain finish. It measures 0.1563 inches in diameter and 0.5 inches in overall length, equivalent to a 5/32-inch fractional diameter. Coiled spring pins are slotted cylindrical fasteners that compress during installation and exert radial spring force against the bore wall to maintain a secure, vibration-resistant hold. Machinists, maintenance technicians, and assembly professionals install these pins to lock shafts, gears, levers, and linkages in fixed positions across a wide range of mechanical assemblies.

This pin is suited for use in light to medium-duty mechanical assemblies where a compact, self-retaining fastener is required. Typical applications include shaft-to-hub connections, pivot points, and alignment fixtures in industrial equipment, automotive assemblies, and general manufacturing environments. The inch measurement system makes this pin compatible with standard imperial-dimensioned bored holes found in North American production and maintenance settings.

Key Features

• 0.1563 inch (5/32 inch) diameter for use in standard imperial-dimensioned bores
• 0.5 inch overall length suits compact fastening applications with limited axial space
• 1070-1090 alloy steel construction provides reliable strength and spring retention force
• Plain finish — no coating or plating — suitable for dry or lightly lubricated environments
• Coiled design allows the pin to compress during installation and expand to grip the bore wall
• Does not meet military specifications — intended for standard commercial applications

Compatibility

Designed as a standard commercial coiled spring pin for use in imperial-dimensioned bores requiring a 0.1563 inch diameter fastener in general mechanical assembly and maintenance applications.

Installation Notes

Installation is typically performed by a machinist or maintenance technician using a pin punch and hammer or an arbor press sized appropriately for the pin diameter. The receiving bore should be clean, free of burrs, and dimensioned to the correct tolerance before driving the pin. Ensure the assembly is secure and de-energized or de-pressurized before disassembly or pin replacement. Do not reuse a coiled spring pin that has been removed, as repeated compression cycles reduce retention force.