Gibraltar 49326G Slip Fit Diamond Locating Pin 0.499in

Product Description

The GIBRALTAR 49326G is a slip-fit diamond straight locating pin used in workholding and fixture applications. It is manufactured from low carbon steel and features a relieved diamond nose profile that allows two locating pins to be used simultaneously in close-hole patterns without binding. The nose diameter measures 0.499 inches with a nose length of 0.5 inches. The tail diameter is 0.5 inches, the collar diameter is 0.875 inches, and the overall length (OAL) is 1.5 inches. A chamfer length of 0.125 inches aids part entry. The tolerance is held at +0.0000 inches, making this pin suitable for precision repeatable positioning in machined jig plates and fixtures.

This locating pin is intended for use in jig and fixture setups where a second locating point is needed alongside a round locating pin. The diamond (relieved) geometry compensates for hole-to-hole spacing variation and prevents over-constraint of the workpiece. Typical installations include production machining fixtures, welding fixtures, assembly jigs, and quality inspection fixtures. The slip-fit design allows the workpiece to be loaded and unloaded without interference while maintaining reliable positional reference. Machinists, toolmakers, and fixture builders working in metal fabrication and precision machining environments install this type of pin.

Key Features

• Diamond (relieved) nose profile allows use with a second round locating pin without over-constraining the workpiece
• Nose diameter of 0.499 inches with +0.0000 inch tolerance for precision slip-fit engagement
• Low carbon steel construction provides adequate hardness and machinability for fixture applications
• Collar diameter of 0.875 inches provides a positive seating shoulder in the fixture plate
• Chamfer length of 0.125 inches on the nose aids workpiece loading and part entry
• Overall length of 1.5 inches suits standard fixture plate thicknesses common in production environments

Compatibility

Designed as a standard-format replacement or supplemental locating pin for use in machining fixtures, assembly jigs, and inspection fixtures that accept a 0.5-inch tail diameter pin with a 0.875-inch collar.

Installation Notes

Installation is typically performed by toolmakers or machinist-level personnel during fixture build or maintenance. Press or hand-fit the pin into the fixture plate from the front face, seating the collar flush against the plate surface. Ensure the fixture plate bore is clean and free of burrs before installation. Do not force the pin with impact tooling, as this can deform the precision nose geometry.