Value Collection R57900797 Slotted Spring Pin 45mm 8mm Steel

Product Description

The VALUE COLLECTION R57900797 is a slotted spring pin manufactured from 1070-1080 grade carbon steel with a plain finish. Slotted spring pins, also called roll pins, are hollow cylindrical fasteners with a lengthwise slot that allows radial compression during installation. This design creates a spring-like retention force against the bore wall, locking the pin securely without adhesives or secondary hardware. At 45 mm in overall length and 8 mm in diameter, this pin is sized for medium-duty metric fastening applications. Machinists, millwrights, and maintenance technicians install these pins to align shafts, retain components in housings, and serve as pivot or hinge points in mechanical assemblies.

This slotted spring pin is suited for general industrial and mechanical assembly applications where metric fastening is required. Typical uses include shaft-to-hub connections, gear and pulley retention, jig and fixture assembly, and light-to-medium structural alignment tasks. The 1070-1080 steel construction provides adequate hardness and spring force for most commercial and industrial machine maintenance scenarios. This pin does not meet military specifications and is intended for standard commercial applications.

Key Features

• 45 mm overall length in a metric form factor for metric-dimensioned bores and assemblies
• 8 mm diameter provides a substantial spring retention force in medium-duty applications
• 1070-1080 grade carbon steel construction offers good hardness and elasticity for reliable radial clamping
• Plain finish with no plating or coating applied, suitable for dry or lightly lubricated environments
• Slotted design allows compression during insertion and self-retention without staking or adhesive

Compatibility

Designed as a standard metric slotted spring pin for use in any application requiring an 8 mm bore diameter and 45 mm pin length per ISO or DIN metric fastening standards.

Installation Notes

Slotted spring pins are installed by machinists or maintenance technicians using a pin punch and hammer or a pneumatic pin driver sized to the pin diameter. Always ensure the receiving bore is clean, free of burrs, and dimensioned to the correct tolerance before driving the pin. Do not reuse a spring pin that has been fully removed, as repeated compression cycles reduce retention force. Follow applicable machinery safety lockout and tagout procedures before servicing any assembly containing these pins.