Gibraltar 677135-G Bullet Straight Locating Pin Steel

Product Description

The GIBRALTAR 677135-G is a bullet straight locating pin machined from steel, used to precisely position workpieces or fixtures in manufacturing and machining applications. It features a 0.3124-inch nose diameter with a bullet-nosed profile that guides components into alignment quickly and consistently. The collar diameter measures 0.344 inches, the tail diameter is 0.3141 inches, and the overall length is 0.939 inches. With a tolerance of +0.0000 inches on the nose, this pin is suited for close-tolerance fixturing work where repeatable positioning is critical. Machinists, toolmakers, and fixture builders are the primary installers.

This locating pin is intended for use in jigs, fixtures, and tooling setups common in metal fabrication, CNC machining, and assembly operations. The bullet nose shape allows the pin to guide mating components smoothly into the locating bore even under moderate misalignment during loading. The non-relieved body provides full bearing contact along the tail length of 0.5 inches, which supports consistent hole engagement. It is compatible with liner UDB-635185 as noted by the manufacturer.

Key Features

• Bullet nose profile guides workpieces into alignment with minimal resistance
• Steel construction provides durability in repeat-cycle fixturing environments
• Non-relieved body maximizes contact area within the locating bore
• Close nose tolerance of +0.0000 inches supports precision positioning
• Collar diameter of 0.344 inches provides a positive seating shoulder
• Compact overall length of 0.939 inches suits low-profile fixture designs

Compatibility

Compatible with liner UDB-635185 per manufacturer specification. Designed as an OEM-style replacement or direct-fit locating pin for jig and fixture assemblies requiring a bullet straight pin in this diameter range.

Installation Notes

Installation is typically performed by toolmakers or machinists during fixture assembly or maintenance. Press or hand-drive the pin into the mating liner or bushed hole using an appropriate driver to avoid damaging the nose profile. Ensure the receiving bore is clean and free of chips or burrs before installation. Do not exceed the designed interference fit by using oversized installation force, as this may distort the locating bore or damage the pin collar.