Value Collection MP40939 Extended Prong Cotter Pin

Product Description

The VALUE COLLECTION MP40939 is a Grade 2 steel extended prong cotter pin designed for use in clevis pins, shaft assemblies, and mechanical linkage applications. The extended prong design allows the legs to be bent back securely after insertion, locking the mating pin in place and preventing axial movement. This fastener measures 3/16 inches in diameter and 1-1/2 inches in length. A zinc plating finish provides baseline corrosion resistance in light-duty indoor and outdoor environments. Machinists, millwrights, equipment mechanics, and general maintenance technicians routinely install this type of fastener during assembly and field repair work.

This cotter pin is suited for light-to-medium duty mechanical assemblies including agricultural equipment linkages, HVAC damper pivot points, hydraulic cylinder clevis connections, and general industrial machinery. The 3/16-inch diameter fits standard clevis and castle nut configurations sized for that bore. It is installed as a single-use locking fastener and should be replaced rather than reused once removed from service.

Key Features

• Extended prong design allows legs to be folded back securely for positive retention
• Grade 2 steel construction provides adequate shear strength for light-to-medium mechanical loads
• Zinc plating offers corrosion resistance for general indoor and moderate outdoor use
• 3/16 inch diameter fits standard clevis pins and castle nuts in that bore size
• 1-1/2 inch length accommodates typical clevis wall thicknesses and castle nut heights

Compatibility

Designed as an OEM-style replacement or standard-stock cotter pin for mechanical assemblies requiring a 3/16-inch diameter extended prong cotter pin in Grade 2 steel with a zinc-plated finish.

Installation Notes

Installation requires needle-nose pliers or a cotter pin tool to spread and fold the prongs after insertion through the clevis or castle nut bore. Ensure the mating pin hole is fully clear of the bore before inserting the cotter pin. This fastener is a single-use item and must not be reused once the prongs have been bent. Remove and replace during any service interval that requires disassembly of the retained component.