Gibraltar 646405-G Press Fit Rest Button 3/4 in Oal

Product Description

The GIBRALTAR 646405-G is a press fit rest button designed for use in fixture, jig, and workholding applications where a hardened, ground locating surface is required. Manufactured from low carbon steel with a black oxide finish, this button provides a durable seating surface for precision workpiece positioning. The ground press fit design allows for secure installation into a bored hole without additional fasteners. At 3/4 inch overall length with a 3/8 inch head height and 3/8 inch outside diameter, it suits compact tooling layouts. The pin diameter of 0.1885 inches enables a controlled press fit into standard receiving bores.

This rest button is used in machine shop and manufacturing environments where repeatable workpiece location is critical. Typical applications include drill jigs, milling fixtures, welding positioners, and assembly fixtures. The black oxide coating provides mild corrosion resistance during storage and use in shop environments. Machinists, tool and die makers, and fixture builders install this type of component as part of a precision locating system alongside other rest buttons, locating pins, and clamps.

Key Features

• Ground press fit seating surface for accurate workpiece location
• Low carbon steel construction for reliable structural integrity
• Black oxide finish for mild corrosion resistance
• 0.1885 inch pin diameter for controlled press fit installation
• 3/8 inch head height and 3/8 inch outside diameter for compact footprint
• 3/4 inch overall length suits standard jig and fixture plate thicknesses

Compatibility

Designed as an OEM-style replacement or direct-use component for press fit rest button applications in standard machine shop fixture and jig assemblies.

Installation Notes

Press fit rest buttons are installed by tool and die makers or machinists using an arbor press or similar controlled-force equipment. The receiving bore should be sized to match the pin diameter within specified tolerance before installation to ensure proper fit and prevent damage to the button or plate. Always verify the bore is clean and free of burrs prior to pressing the button in place. Do not strike the button directly with a hammer, as this can damage the ground seating surface.