Gibraltar 40312G Double Threaded Stud 1/4-20 7 Inch

Product Description

The GIBRALTAR 40312G is an equal double threaded stud with a 1/4-20 thread size and a 7-inch overall length. This stud is manufactured from alloy steel with a black oxide finish, giving it corrosion resistance suitable for general industrial and mechanical fastening applications. The equal thread design means both ends carry the same 1/4-20 thread, allowing it to mate with standard nuts or tapped holes on both sides. Material Grade 5 construction provides strength appropriate for structural and equipment-assembly use. Licensed trades and maintenance technicians install this type of fastener in HVAC equipment frames, mounting brackets, and other mechanical assemblies.

This double threaded stud is suited for residential and light commercial applications where a permanent or semi-permanent threaded connection is required without a bolt head. Typical installations include equipment mounting, vibration isolation mounts, junction hardware, and panel or bracket assembly work. The black oxide finish reduces surface rust in dry or mildly humid environments. Thread Fit Class 50 ensures consistent thread engagement with standard 1/4-20 fastener hardware.

Key Features

• Equal double threaded design with matching 1/4-20 threads on both ends
• 7-inch overall length for applications requiring extended reach or deep engagement
• Alloy steel construction, Material Grade 5 for reliable tensile strength
• Black oxide finish for mild corrosion resistance and reduced light reflection
• Thread Fit Class 50 for consistent engagement with standard 1/4-20 hardware
• Flat-free design with no wrench flats — installed with nut-and-nut or jam-nut method

Compatibility

Designed for use with standard 1/4-20 threaded nuts, inserts, and tapped holes in HVAC equipment mounting, mechanical assemblies, and general trade fastening applications.

Installation Notes

Installation is performed by threading a jam nut or double-nut onto one end to drive the stud into a tapped hole or coupling. Power down or de-energize any equipment before fastener service to prevent injury. Follow applicable mechanical codes and torque guidelines for Grade 5 alloy steel fasteners in the relevant assembly. Do not use impact tools directly on the stud body, as this can damage the thread form.