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The GIBRALTAR G-02FC42018 is a symmetrical hex clamp designed for secure fastening applications requiring a 5/16-18 stud thread. The clamp features a 13/16 inch hex size and a thread length of 0.4688 inches, with a hex height of 0.11 inches. Sold in a pack of 10 clamps, this part is used by electricians, HVAC technicians, plumbers, and general tradespeople wherever a reliable, symmetrically profiled hex clamp is required for stud-mounted connections. The symmetrical hex geometry allows for consistent torque application from either side of the clamp body.
This hex clamp is suited for use in light industrial, commercial, and residential trade applications where stud thread fastening is part of panel assembly, equipment mounting, or conduit support work. The 5/16-18 thread size is a common unified coarse thread specification found across a wide range of trade hardware and OEM equipment assemblies. Each package contains 10 clamps, making it practical for job-site stocking or service van inventory.
Designed as a standard-thread symmetrical hex clamp for use in applications requiring a 5/16-18 stud thread and a 13/16 inch hex drive.
Installation is performed by qualified tradespeople familiar with threaded fastener assemblies. Always de-energize and lock out equipment before servicing any stud-mounted components. Use a properly sized socket or open-end wrench matching the 13/16 inch hex to avoid rounding the clamp body. Follow applicable NEC or equipment manufacturer guidelines for fastener torque and assembly procedures.
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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