Boneham LS00000006 Drill Bushing Lock Screw M5x8

Product Description

The BONEHAM LS00000006 is a drill bushing lock screw designed to secure press-fit and slip-fit drill bushings in jig plates during precision drilling operations. The screw features an M5x8 thread with a 13 millimeter head diameter and a 7.5 millimeter shoulder diameter. Overall length is 15 millimeters, with a combined head and shoulder length of 6 millimeters. This type of fastener is installed by toolmakers, machinist, and fixture builders to prevent bushing rotation or axial movement under cutting loads. It is a standard component in drill jig assemblies used across production machining environments.

This lock screw is suited for use in drill jig fixtures where bushings must be held firmly in place during repetitive hole-location operations. Typical applications include production machining cells, toolroom setups, and quality-controlled drilling fixtures in metalworking, aerospace component fabrication, and general industrial manufacturing. The compact dimensions make it appropriate for jig plates with limited clearance around the bushing head. It ships individually and is available for purchase in single-unit quantities.

Key Features

• M5x8 thread size for standard drill jig bushing retention
• 13 millimeter head diameter provides positive clamping surface over bushing flange
• 7.5 millimeter shoulder diameter for precise fit against bushing collar
• 15 millimeter overall length suits typical jig plate thicknesses
• 6 millimeter combined head and shoulder length minimizes protrusion above jig surface
• Lightweight at 0.2 pounds — minimal added mass to fixture assembly

Compatibility

Designed as an OEM-style replacement or standard fitment lock screw for M5-threaded drill bushing installations in industrial drill jig fixtures.

Installation Notes

Installation is performed by toolmakers or machinists using standard metric hex key tooling. Ensure the bushing is fully seated in the jig plate bore before engaging the lock screw. Do not overtighten — the screw is intended to restrain the bushing, not to clamp the workpiece. Follow shop-floor fixture standards and any applicable ASME or ISO tooling specifications for torque and fitment requirements.