Value Collection R57900571 Slotted Spring Pin 12mm 3mm Steel

Product Description

The VALUE COLLECTION R57900571 is a slotted spring pin designed for fastening and alignment applications in mechanical assemblies. The slotted design allows the pin to compress on insertion and expand against the bore wall, creating a secure interference fit without adhesives or secondary locking hardware. Measuring 12 mm in length and 3 mm in diameter, this pin is manufactured from 1070-1080 steel with a plain finish. It is suited for use in production environments, maintenance repairs, and original equipment assembly work performed by machinists, millwrights, and mechanical technicians.

This slotted spring pin fits metric bore applications requiring a 3 mm pin hole. The 12 mm length makes it appropriate for moderate-depth through-holes and blind-hole assemblies in gearboxes, linkages, hinges, and similar mechanical components. The 1070-1080 steel construction provides good hardness and resilience for cyclical loading conditions. The plain finish is standard for interior or protected installations where corrosion exposure is not a primary concern. This part ships in individual unit quantities with a minimum order of 100 pieces.

Key Features

• Slotted design compresses for easy insertion and locks via radial expansion in the bore
• 12 mm overall length suits moderate-depth metric bore assemblies
• 3 mm diameter for standard metric pin holes
• 1070-1080 steel construction provides hardness and fatigue resistance under cyclical load
• Plain finish for use in protected or interior installations
• Metric system of measurement for compatibility with metric-dimensioned components

Compatibility

Designed as a standard metric slotted spring pin for use in any mechanical assembly requiring a 3 mm diameter, 12 mm long spring pin per metric fastener standards.

Installation Notes

Installation is typically performed by machinists or mechanical technicians using a pin punch and hammer or an arbor press. Ensure the receiving bore is clean and dimensioned correctly for the specified pin diameter before installation. Verify the bore depth accommodates the full 12 mm pin length to prevent incomplete seating. Remove all power, pressure, or load from the assembly before driving or removing spring pins.