Gibraltar 646462-G Press Fit Rest Button Low Carbon Steel

Product Description

The GIBRALTAR 646462-G is a ground press fit rest button designed for precision workholding and fixturing applications in machining and tooling environments. Constructed from low carbon steel with a black oxide finish, this button provides a stable, hardened rest surface for locating workpieces on jigs, fixtures, and machining plates. It measures 1-3/8 inches in overall length with a 7/8 inch outside diameter and a 7/16 inch head height. The 0.501 inch pin diameter is ground to close tolerance for a reliable press fit installation. Machinists and toolroom technicians rely on rest buttons like this to establish repeatable datum points during part setup and inspection.

This rest button is suited for use in toolrooms, machine shops, and manufacturing environments where accurate workpiece location is required. It installs into pre-drilled and reamed fixture plates or jig bodies. The ground press fit design ensures positive seating without additional fasteners, making it a standard choice for fixture builders working with low to medium-duty locating applications. Sold individually with a minimum order quantity of one.

Key Features

• Ground press fit pin for accurate, repeatable installation in reamed holes
• Low carbon steel construction provides toughness and machinability
• Black oxide finish for mild corrosion resistance and reduced glare
• 1-3/8 inch overall length with 7/16 inch head height for low-profile fixturing
• 0.501 inch pin diameter ground to close tolerance for consistent fit
• 7/8 inch outside diameter head for broad workpiece contact surface

Compatibility

Designed as a standard press fit rest button for use in machining fixtures, jig plates, and tooling bodies requiring a 0.501 inch reamed locating hole.

Installation Notes

Installation is typically performed by toolroom machinists or fixture builders. The receiving hole should be reamed to the appropriate diameter for a proper press fit before driving the button into place. Use an arbor press rather than a hammer to avoid damaging the ground surfaces or distorting the host plate. Inspect the seating surface after installation to confirm the button is flush and square to the fixture plate face.