Gibraltar 9816SS-G Clamping Screw 1/2-13 Stainless Steel

Product Description

The GIBRALTAR 9816SS-G is a headed, plain flat face, ball end clamping screw designed for fixturing, workholding, and tooling applications where a positive, non-marring point of contact is required. Machined from 18-8 stainless steel throughout, including the ball end, this screw resists corrosion in wet or chemically active environments. The 1/2-13 UNC thread and 1.5-inch overall length make it a standard choice for medium-duty clamp assemblies. Drive is accomplished with a 3/8-inch hex key. The 0.29-inch ball diameter provides a compact, precise contact point suited to precision clamping work in machine shops and toolroom settings.

This clamping screw is used in fixturing plates, modular workholding systems, jigs, and tooling blocks wherever a ball-end clamp screw is specified. The plain flat face ball style is appropriate for applications requiring a smooth, consistent contact surface without additional swivel seat hardware. Typical installers include machinists, toolmakers, and mechanical technicians assembling or servicing production fixtures and clamping setups.

Key Features

• 18-8 stainless steel screw and ball material for corrosion resistance in demanding environments
• 1/2-13 UNC thread for compatibility with standard imperial fixturing hardware
• 1.5-inch overall length suits medium-depth clamping applications
• Plain flat face ball end provides a consistent, non-marring contact point
• 3/8-inch hex key drive for positive torque transfer with common shop tools
• 0.29-inch ball diameter for compact, precise contact geometry

Compatibility

Designed as a direct-fit replacement or service component for fixturing systems and workholding assemblies specifying a 1/2-13 UNC headed ball end clamping screw with a plain flat face ball style.

Installation Notes

Installation requires a 3/8-inch hex key. Ensure the mating threaded hole is clean and free of debris before threading the screw in by hand to confirm engagement. Do not exceed the torque capacity of the thread by using extended-length drive tools. Stainless steel fasteners are susceptible to galling — apply an appropriate anti-seize compound to the threads before final assembly to prevent seizing.