Gibraltar SID-903A-G Heel Clamp Tapped Forged Steel

Product Description

The GIBRALTAR SID-903A-G is a tapped heel clamp designed for secure workholding and fixturing applications in machining and fabrication environments. Forged from ASTM A521 Class CA steel, this clamp delivers the structural integrity required for high-clamping-force setups. It features a 13/16-inch stud size, a 2-13/16-inch by 13/16-inch slotted opening, and 2 inches of travel, giving technicians flexibility in positioning across a range of workpiece thicknesses. The overall length is 8 inches, overall width is 2-1/8 inches, and overall height is 1-1/8 inches. The tapped configuration accepts a 3/4-10 threaded stud. Machinists, tool-and-die makers, and maintenance technicians working with manual or CNC machine tables will find this clamp suited to standard T-slot fixturing setups.

This heel clamp is intended for use in industrial machining environments where T-slot table clamping is required. The 2-inch travel range accommodates variable workpiece heights, and the forged steel construction handles the clamping loads common in milling, drilling, and grinding operations. It is sold individually and is appropriate for both shop-floor production setups and maintenance-level fixturing tasks requiring a reliable, standard-profile clamp.

Key Features

• Forged ASTM A521 Class CA steel construction for high clamping strength and durability
• Tapped configuration with 3/4-10 tap size for standard stud compatibility
• 13/16-inch stud size fits common T-slot table configurations
• 2 inches of travel provides flexibility across varying workpiece heights
• Slotted opening measures 2-13/16 inches long by 13/16 inches wide
• Compact heel-clamp profile at 8 inches OAL keeps the clamp low-profile on the table

Compatibility

Designed as an OEM-style replacement or direct-fit clamp for standard T-slot machine table fixturing setups using a 13/16-inch stud and 3/4-10 tapped engagement.

Installation Notes

Installation is typically performed by a machinist or tooling technician. Ensure the machine table is fully powered down and any moving axes are locked before positioning the clamp. Use the appropriate torque wrench and stud to secure the clamp firmly in the T-slot without over-stressing the forged body. Verify stud thread engagement is sufficient before applying full clamping force to the workpiece.