Gibraltar SID-904-G Heel Clamp 15/16 in Stud Forged Steel

Product Description

The GIBRALTAR SID-904-G is a forged steel heel clamp designed for industrial fastening and workholding applications. Built to ASTM A521 Class CA standards, this clamp features a 15/16 inch stud size and 2-3/4 inch travel, giving technicians and machinists the clamping range needed for secure fixture setups. At 10 inches overall length and 2-1/2 inches overall width, it is sized for medium-duty workholding tasks on machine tables, jigs, and fixtures. The slot measures 3-11/16 inches long by 15/16 inches wide. This is a non-drilled, non-tapped strap-style clamp supplied as a single unit.

The SID-904-G heel clamp is used in manufacturing, maintenance, and fabrication environments where reliable workholding is required. It suits applications on milling machines, drill presses, and similar equipment where a T-slot or bolt-down clamping arrangement is standard. At 7 pounds, the forged steel construction provides the mass and rigidity expected in production shop settings. It is installed by machinists, millwrights, and maintenance technicians in both job shop and production floor environments.

Key Features

• ASTM A521 Class CA forged steel construction for high strength and durability
• 15/16 inch stud size with 2-3/4 inch travel for versatile clamping range
• Heel clamp strap style — not drilled or tapped, ready for standard stud-and-nut setups
• Slot dimensions of 3-11/16 inches long by 15/16 inches wide for precise positioning
• 10 inch overall length with 1-3/8 inch overall height for low-profile clamping

Compatibility

Designed as an OEM-style replacement or direct-use heel clamp for standard T-slot workholding setups using 15/16 inch stud hardware.

Installation Notes

Installation is performed by machinists or millwrights following standard workholding procedures. Ensure the machine table and T-slots are clean and free of debris before positioning the clamp. Power down and lock out the machine before making any fixture adjustments. Do not overtighten the stud nut beyond the torque requirements specified for the stud diameter and material being clamped.