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The GIBRALTAR HCP5666-G is a hard core pin used in fastening, assembly, and alignment applications across industrial and trade settings. It features a 7/16 inch pin diameter, a 10 inch overall length, and is manufactured from steel for durability under load. The hardened construction makes it suitable for applications requiring a pin that resists deformation during installation or service. Machinists, maintenance technicians, and assembly professionals install this type of pin in fixtures, jigs, hinges, and mechanical assemblies where secure, repeatable positioning is required.
This hard core pin is well suited for light industrial, manufacturing, and maintenance applications. With a 9-3/4 inch pin length and an 11/16 inch head diameter, it provides a positive stop when driven into a bored or reamed hole. The 1/4 inch head height keeps the profile low while still offering a bearing surface for driving. It is sold individually and is a standard stocked component for shop and field use.
Designed as an OEM-style replacement or direct-fit component for industrial fixtures, jigs, and mechanical assemblies requiring a 7/16 inch diameter hard core pin with a 10 inch overall length.
Hard core pins are typically installed by machinists or maintenance technicians using a pin driver or press. Ensure the receiving hole is clean, properly sized, and free of burrs before driving the pin. Do not strike the head with an oversized hammer that could deform the head diameter or damage surrounding material. Follow applicable facility safety and lockout/tagout procedures before servicing any assembly containing this pin.
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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