Gibraltar 30903G Clamp Strap Carbon Steel 1/4 in Stud

Product Description

The GIBRALTAR 30903G is a carbon steel clamp strap designed for workholding and fixturing applications in machining, fabrication, and toolroom environments. It features a radius nose profile, a 1/4 inch-20 tapped stud hole, and a black finish for corrosion resistance. The strap measures 2-1/2 inches in overall length, 5/8 inches wide, and 3/8 inches in height, with 1/2 inch of travel. Machinists, tool and die makers, and fabricators use this style of clamp strap to secure workpieces to milling tables, drill press tables, and fixture plates during cutting or drilling operations.

This clamp strap is suited for use in manual machining setups, CNC fixturing, and general workholding configurations. The radius nose design allows the strap to bear against a workpiece or step block smoothly without sharp-edge stress concentration. The non-serrated underside suits applications where the clamping surface must remain unmarked. It is a standard component in T-slot clamping kits and is sized for use with 1/4 inch-20 studs and standard step blocks or heel blocks.

Key Features

• Carbon steel construction for strength in demanding workholding applications
• Radius nose profile reduces stress concentration at the contact point
• 1/2 inch of travel accommodates varying workpiece heights
• 1/4 inch-20 tap size compatible with standard T-slot clamping hardware
• Non-serrated bottom surface protects sensitive workpiece surfaces
• Black finish provides basic corrosion resistance

Compatibility

Designed as a standard replacement or add-on clamp strap for 1/4 inch-20 T-slot workholding systems used in manual and CNC machining setups.

Installation Notes

Installation is performed by machinists or toolroom technicians using standard hand tools. Ensure the machine table or fixture plate is de-energized and the spindle is fully stopped before adjusting or repositioning clamp straps. Pair with an appropriately rated step block and T-nut to complete the clamping assembly. Do not exceed the rated capacity of the stud or step block when torquing the fastener.