Gibraltar HCP5654-G Hard Core Pin 5/16 in Steel

Product Description

The GIBRALTAR HCP5654-G is a hardened steel hard core pin used in fixturing, tooling, and workholding applications across manufacturing and fabrication environments. It features a 5/16 inch pin diameter, a 10 inch overall length, and a 1/2 inch head diameter with a 1/4 inch head height. The pin body measures 9-3/4 inches in length. Hard core construction means the pin is hardened through its full cross-section, providing resistance to bending and wear under repeated load cycles. Machinists, toolmakers, and fabricators install this type of pin in jigs, fixtures, and assembly tooling where dimensional accuracy and durability are required.

This pin is suited for precision workholding and locating applications in machine shops, tool rooms, and light manufacturing settings. It is used wherever a reliable, repeatable locating or retention pin is needed in a fixture or jig assembly. The hardened steel construction makes it appropriate for higher-cycle environments where soft pins would deform prematurely. It ships as a single unit and is compatible with standard 5/16 inch pin-diameter bores in fixturing components.

Key Features

• Hard core construction — fully hardened through cross-section for wear and bend resistance
• 5/16 inch pin diameter for use in standard 5/16 inch locating or retention bores
• 10 inch overall length with 9-3/4 inch usable pin length
• 1/2 inch head diameter and 1/4 inch head height for positive seating and easy extraction
• Steel material provides durability in repeated-use fixturing applications
• Single-piece unit — no assembly required

Compatibility

Designed as an OEM-style replacement or direct-fit locating pin for fixtures and jigs requiring a 5/16 inch diameter hard core pin with a 10 inch overall length.

Installation Notes

Installation is performed by toolmakers or machinists during fixture assembly or maintenance. Ensure the receiving bore is clean and dimensionally correct before inserting the pin to avoid galling or binding. Use appropriate driving tools — never strike the head directly with a steel hammer without a brass drift to protect the head face. Inspect the bore and pin for wear or damage before reinstalling in high-cycle fixturing applications.