Gibraltar 646410-G Press Fit Rest Button 3/8 in Od

Product Description

The GIBRALTAR 646410-G is a press fit rest button designed for precision workholding and fixture applications in industrial and machining environments. It features a ground finish for close-tolerance press fit installation and is manufactured from low carbon steel with a black oxide coating for corrosion resistance. Key dimensions include a 3/8 inch outside diameter, 7/8 inch overall length, 1/2 inch head height, and a 0.1885 inch pin diameter. This style of rest button is typically installed by machinists and toolmakers when building jigs, fixtures, and locating assemblies.

Press fit rest buttons are used in tooling plates, jig plates, and fixture bodies where a hardened or ground locating surface is needed to support or position a workpiece accurately. The ground press fit type ensures a consistent, repeatable fit into a bored hole without the need for adhesives or secondary fasteners. This part is sold individually and is suited for light-duty fixturing applications in job shops and production machining environments.

Key Features

• Ground press fit type for precise, repeatable installation in bored holes
• Low carbon steel construction with black oxide coating for corrosion resistance
• 3/8 inch outside diameter with 0.1885 inch pin diameter for close-tolerance fitment
• 1/2 inch head height provides a stable resting surface for workpiece contact
• 7/8 inch overall length suits standard tooling plate thicknesses
• Sold as a single unit — quantities can be ordered as needed

Compatibility

Designed as a standard press fit rest button for use in jigs, fixtures, and tooling plates requiring a 3/8 inch bored hole with a ground press fit interface.

Installation Notes

Installation is typically performed by a machinist or toolmaker using an arbor press to seat the button flush and square into a precision-bored hole. The receiving hole should be bored to the appropriate interference tolerance to achieve a secure press fit. Power down and de-energize any associated machinery before installing or removing rest buttons in active fixtures. Do not hammer install without a proper pressing tool, as this can damage the ground surface or misalign the button.