Gibraltar 40402G Equal Double Threaded Stud 5/16-18 2in Oal

Product Description

The GIBRALTAR 40402G is an equal double threaded stud with a 5/16-18 thread size and an overall length of 2 inches. This type of fastener features identical external threads on both ends, allowing it to be driven into one component and then accept a nut or fitting on the opposite end. Constructed from alloy steel with a black oxide finish, it carries a material grade of 5 and a thread fit class of 50, indicating a controlled interference fit appropriate for demanding mechanical assemblies. Plumbers, HVAC technicians, electricians, and general mechanical contractors use this type of stud where a fully threaded, dual-end connection is required.

Equal double threaded studs like the 40402G are commonly installed in mechanical, plumbing, and HVAC equipment assemblies where a bolt head cannot be accommodated or where a stud-and-nut configuration is required for clamping flanges, panels, or equipment housings. The black oxide finish provides mild corrosion resistance suitable for indoor mechanical environments. This stud is sold individually and is appropriate for light-duty fastening applications in both residential and commercial service work.

Key Features

• Equal double threaded design with matching 5/16-18 threads on both ends
• Alloy steel construction with material grade 5 for reliable tensile strength
• Black oxide finish for mild corrosion resistance in indoor environments
• Thread fit class 50 for controlled, consistent thread engagement
• Overall length of 2 inches suits standard mechanical assembly applications
• No flats on the body — installs by thread engagement only

Compatibility

Designed as a standard 5/16-18 equal double threaded stud for use in mechanical, HVAC, plumbing, and electrical equipment assemblies that require a grade 5 alloy steel fastener with a 2-inch overall length.

Installation Notes

Installation is typically performed by a licensed mechanic, HVAC technician, or plumber as part of equipment assembly or service. Thread the stud into the receiving component using a stud driver or locking-nut method, and torque per the equipment manufacturer's specification for the fastener grade and size. Ensure mating threads are clean and free of debris before installation. De-energize or shut off all relevant systems before working in the immediate area of the fastener installation.