Gibraltar 22720.0083 Headless Rolling Ball Clamping Screw M8

Product Description

The GIBRALTAR 22720.0083 is a headless rolling ball end clamping screw designed for precision workholding and fixturing applications. Manufactured from steel throughout — both the screw body and the rolling ball — this fastener provides reliable clamping force with a rated maximum load capacity of 3,272 pounds. The M8 thread size and 17.2mm overall length make it a compact yet high-capacity component suited for use in jigs, fixtures, vises, and tooling plates. Installation requires a 4mm hex key. The 5.5mm rolling ball end allows multi-angle contact with the clamped workpiece, distributing load without marring surfaces. Machinists, toolmakers, and fixture builders are the primary installers of this type of hardware.

This clamping screw is used in machine shop and manufacturing environments where secure, adjustable workholding is required. It is suited to both light production and precision toolroom work. The headless design keeps the fastener flush or recessed within the fixture body, which is critical in applications where clearance is limited or where protruding hardware would interfere with workpiece positioning or machine travel.

Key Features

• Headless design allows flush or recessed installation in fixture bodies
• Rolling ball end enables multi-angle contact and reduces surface marring on clamped parts
• M8 thread size for compatibility with standard metric fixture and tooling plate tapped holes
• 3,272 pound maximum load capacity for demanding workholding applications
• 5.5mm ball diameter provides controlled contact area
• Steel construction on both screw body and ball for durability in shop environments

Compatibility

Designed as an OEM-style replacement or direct-fit component for metric M8 tapped workholding fixtures, jigs, tooling plates, and vise assemblies requiring a headless rolling ball end clamping screw.

Installation Notes

Installation is performed by machinists or toolmakers using a 4mm hex key. Ensure the receiving tapped hole is clean and free of chips or debris before threading in the screw. Do not exceed the rated maximum load capacity of 3,272 pounds. Torque to fixture manufacturer specifications — no specific torque value is provided with this part.