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The GIBRALTAR 40704G is an equal double threaded stud with 1/2-13 UNC threading and a 3-inch overall length. This fully threaded fastener is machined from alloy steel with a black oxide finish and meets Grade 5 material standards. Equal double threaded studs provide the same thread engagement on both ends, making them well-suited for through-bolt applications, bracket mounting, and mechanical assemblies where a standard bolt head would be impractical. Licensed tradespeople working in HVAC, plumbing, electrical, and general mechanical service will encounter these studs in equipment mounting and structural fastening situations. The black oxide finish provides moderate corrosion resistance and reduces light reflection in finished assemblies.
This stud is used in residential and commercial mechanical applications where a headless, double-end threaded fastener is required. Typical scenarios include equipment mounting frames, pipe hanger assemblies, panel attachment points, and structural bracketing found in trade installations. The flat feature on this stud assists with installation and removal using standard wrenches. With Grade 5 alloy steel construction, it handles the clamping loads typical of trade mechanical work.
Designed as a standard 1/2-13 UNC equal double threaded stud for use in mechanical, HVAC, plumbing, and electrical equipment mounting applications requiring a Grade 5 alloy steel headless fastener.
Install using a stud installer tool or two jam nuts to drive the stud into the mating threaded component. Ensure the receiving threads are clean and free of debris before installation. Follow applicable mechanical codes and equipment manufacturer torque guidance when tightening mating hardware. Always de-energize and isolate any equipment before performing fastener service on live mechanical assemblies.
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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