Value Collection R57700857 Coiled Spring Pin 0.25in

Product Description

The VALUE COLLECTION R57700857 is a coiled spring pin designed for secure fastening in mechanical assemblies where controlled retention force and vibration resistance are required. The pin measures 0.25 inches in diameter and 2.5 inches in length, constructed from 1070-1090 alloy steel with a plain finish. The coiled design allows the pin to compress on installation and exert radial pressure against the hole wall, creating a friction-based lock without requiring secondary fasteners. Machinists, maintenance technicians, and mechanical assemblers regularly use coiled spring pins in production and repair applications across industrial and commercial equipment.

This pin is suited for use in shaft-to-hub connections, linkage assemblies, hinge mechanisms, and general-purpose fastening applications where a removable or semi-permanent retention solution is needed. The 0.25-inch diameter fits standard 1/4-inch drilled or reamed holes. The plain finish is appropriate for dry or lightly lubricated environments. Minimum order quantity is 25 pieces, sold individually per package quantity.

Key Features

• Coiled spring design provides radial retention force and absorbs shock and vibration loads
• 0.25-inch diameter fits standard 1/4-inch hole configurations
• 2.5-inch overall length suits deeper cross-hole and through-hole applications
• 1070-1090 alloy steel construction offers high strength and fatigue resistance
• Plain finish compatible with standard dry and lightly lubricated service conditions
• Does not meet military specifications — intended for commercial and industrial use

Compatibility

Designed as a commercial-grade coiled spring pin for standard 1/4-inch hole applications in general mechanical assemblies. No specific OEM equipment compatibility is stated for this part.

Installation Notes

Coiled spring pins are typically installed by machinists or mechanical technicians using a pin punch and hammer or an arbor press. Ensure the receiving hole is drilled or reamed to the correct diameter before installation to achieve proper retention force. De-energize or lock out all equipment before pin installation or removal. Do not reuse a pin that has been heavily deformed or shows signs of fatigue cracking.