Value Collection 40957 Extended Prong Cotter Pin 5/16x3.5in

Product Description

The VALUE COLLECTION 40957 is an extended prong cotter pin designed to secure clevis pins, axle pins, and fastener assemblies in place by spreading its prongs after insertion through a drilled hole. Measuring 5/16 inch in diameter and 3-1/2 inches in length, this pin is manufactured from Grade 2 steel with a zinc-plated finish for corrosion resistance. It is a standard mechanical fastener used across HVAC equipment linkages, plumbing support assemblies, and general mechanical applications where a reliable, removable locking pin is required. Installation requires no special tools and is performed by hand or with standard needle-nose pliers.

This cotter pin is suited for residential and light commercial mechanical assemblies where a 5/16-inch bore is present. Typical applications include securing clevis pins on HVAC damper linkages, valve handles, pump assemblies, and structural pin connections. The extended prong design provides added material beyond the eye for easier spreading and more secure retention compared to a standard cotter pin. Trade professionals in HVAC, plumbing, and general mechanical service will find this pin appropriate for a wide range of service and replacement tasks.

Key Features

• Extended prong design allows positive locking and easier prong spreading after insertion
• Grade 2 steel construction provides adequate shear strength for general mechanical fastening
• Zinc-plated finish offers basic corrosion resistance in light-moisture environments
• 5/16 inch diameter fits standard drilled pin bores of that size
• 3-1/2 inch length accommodates assemblies with moderate pin shaft depth

Compatibility

Designed as a standard replacement or service cotter pin for any mechanical assembly requiring a 5/16-inch diameter extended prong cotter pin in Grade 2 steel with zinc plating.

Installation Notes

Install by inserting the pin through a properly sized drilled hole in the mating pin or shaft, then spreading the prongs apart with needle-nose pliers to lock it in position. Always de-energize or lock out the associated equipment before servicing pin-retained assemblies. Inspect the bore and mating pin for wear or deformation before installation. Do not reuse a previously spread cotter pin, as re-bending fatigues the material and reduces retention reliability.