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The VALUE COLLECTION R57900879 is a slotted spring pin manufactured from 1070-1080 grade steel with a plain finish. Slotted spring pins are hollow, longitudinally slotted fasteners designed to compress radially when driven into a drilled hole, then spring outward to grip the bore and resist axial displacement. This pin measures 45 mm in overall length with a 12 mm diameter, making it suited for medium-duty fastening and alignment applications in mechanical assemblies. Machinists, maintenance technicians, and mechanical assemblers install these pins in shafts, linkages, and machine frames where a removable or semi-permanent retention solution is required.
Slotted spring pins are common in industrial machinery, agricultural equipment, automotive drivetrain components, and general manufacturing assemblies. This metric-dimensioned pin is appropriate wherever a 12 mm bore and 45 mm engagement length meets the design specification. The 1070-1080 steel construction provides adequate hardness and spring back for standard load applications. The plain finish means no additional coating is applied, which is typical for interior or protected installations where corrosion exposure is limited.
Designed as a standard metric slotted spring pin for use in mechanical assemblies requiring a 12 mm diameter, 45 mm long retention fastener in steel construction.
Slotted spring pins are installed by mechanical technicians or machinists using a pin punch and hammer or an arbor press. The receiving bore should be drilled to the nominal pin diameter per the applicable tolerance standard. De-energize and lock out all equipment before servicing any assembly containing these pins. Avoid reusing spring pins that have been removed, as repeated compression cycles can reduce retention force.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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