Gibraltar 40356G Unequal Double Threaded Stud 1/4-20 6 in

Product Description

The GIBRALTAR 40356G is an unequal double threaded stud with a 1/4-20 thread size and a 6-inch overall length. This stud features two threaded ends of different lengths: a long thread of 2 inches and a short thread of 3/8 inch, with an unthreaded shank in between. Manufactured from Grade 5 carbon steel with a black oxide finish, it delivers solid tensile strength and moderate corrosion resistance suitable for mechanical fastening applications. This type of fastener is commonly installed by millwrights, pipefitters, HVAC technicians, and general mechanical tradespeople securing equipment panels, brackets, and assemblies.

Unequal double threaded studs like the 40356G are used where a fixed stud is needed on one end and a removable or adjustable connection on the other. Typical applications include equipment mounting, bracket fastening, and panel assembly in light industrial, HVAC, and mechanical service environments. The short thread end is suited for permanent engagement into a tapped hole or housing, while the longer thread end accommodates a nut and washer for the removable connection side.

Key Features

• Unequal thread lengths: 2-inch long thread and 3/8-inch short thread for dual-end fastening flexibility
• 1/4-20 UNC thread size, Class 5 fit for standard mechanical assembly
• Grade 5 carbon steel construction for reliable tensile strength in mechanical applications
• Black oxide finish provides moderate rust resistance and reduces light glare on the fastener surface
• 6-inch overall length suits installations requiring reach through panels, flanges, or thick brackets
• No flat (no wrench flat), consistent with standard stud installation using a stud driver or jam-nut method

Compatibility

Designed as a standard 1/4-20 threaded stud for use in any application requiring a Grade 5 carbon steel double-end stud with unequal thread lengths and a 6-inch overall length.

Installation Notes

Install using a stud driver or the jam-nut method to seat the short thread end into a tapped hole without damaging threads. Ensure the tapped receiver hole is clean and free of debris before installation. Torque the nut on the long thread end according to the equipment manufacturer's specifications for 1/4-20 Grade 5 fasteners. De-energize and lock out any equipment before accessing fastener locations on live machinery.