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The GIBRALTAR SID-903-G is a forged steel heel clamp designed for securing workpieces, fixtures, or structural elements in industrial and trade applications. Manufactured to ASTM A521 Class CA standards, this clamp features a 13/16-inch stud size and 2 inches of travel, giving technicians and tradespeople the clamping range needed for varied work surface thicknesses. The overall length measures 8 inches, with an overall width of 2-1/8 inches and an overall height of 1-1/8 inches. The slot dimensions are 2-13/16 inches long by 13/16 inches wide. This is a non-drilled, non-tapped heel clamp intended for use in precision clamping setups where a forged component is required for strength and reliability.
The SID-903-G is suited for machine shop, fabrication, and structural trade applications where T-slot tables, fixture plates, or work-holding setups require a dependable heel clamp. It is appropriate for use in manufacturing, maintenance, and heavy industrial environments. The forged steel construction meets ASTM A521 Class CA, making it a fit for applications that demand a certified, high-strength clamping component. Tradespeople and machinists working with milling machines, drill presses, or fabrication tables will find this clamp a standard tool in work-holding setups.
Designed as an OEM-style replacement or direct-fit component for standard T-slot work-holding and fixture clamping setups requiring a 13/16-inch stud heel clamp configuration.
Installation is typically performed by machinists or tradespeople familiar with work-holding hardware and T-slot fixture systems. Ensure the T-slot table or fixture plate is de-energized and secured before installing or adjusting clamps. Use appropriate hardware torque practices per your equipment manufacturer guidelines. Do not exceed the rated travel range of 2 inches when adjusting clamp position.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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