Gibraltar SID-902A-G Heel Clamp Tapped Forged Steel

Product Description

The GIBRALTAR SID-902A-G is a tapped heel clamp machined from forged steel meeting ASTM A521 Class CA specification. It is used to secure workpieces or fixtures to T-slotted tables, machine beds, and similar setups in industrial and trade applications. The clamp features an 11/16 inch stud size with a 5/8-11 inch tap and provides 1-3/8 inches of vertical travel. Overall length is 6 inches, overall width is 1-3/4 inches, and overall height is 7/8 inches. Machinists, millwrights, and maintenance technicians install this clamp as part of workholding systems where a tapped heel-style configuration is required.

The SID-902A-G suits applications on milling machines, drill presses, surface grinders, and fabrication tables equipped with T-slots. The slotted opening measures 2-1/16 inches long by 11/16 inches wide, allowing positional adjustment along the T-slot before final torque is applied. It is appropriate for both production shop environments and maintenance or repair operations where solid, repeatable workholding is needed.

Key Features

• Forged steel construction meets ASTM A521 Class CA for consistent material integrity
• Tapped heel clamp style with 5/8-11 inch tap for standard stud compatibility
• 1-3/8 inch travel range accommodates varying workpiece heights
• Slotted opening at 2-1/16 inches long by 11/16 inches wide allows precise positioning along T-slots
• Compact profile at 6 inches overall length keeps clearance requirements low

Compatibility

Designed as an OEM-style replacement or direct-use heel clamp for T-slotted machine tables and fixture plates requiring an 11/16 inch stud size with a 5/8-11 inch tapped configuration.

Installation Notes

Installation is performed by machinists or millwrights as part of a workholding setup. Ensure the machine table is de-energized and the spindle is stopped before adjusting clamp position. Seat the clamp heel against the step block or riser, align the slot over the T-slot stud, and torque the fastener evenly to manufacturer or shop standards. Do not over-extend the clamp beyond its rated 1-3/8 inch travel, as this reduces clamping force and can compromise workpiece stability.