Gibraltar 40509G Double Threaded Stud 3/8-16 5.5 in

Product Description

The GIBRALTAR 40509G is an equal double threaded stud with a 3/8-16 thread size and an overall length of 5.5 inches. It is manufactured from alloy steel with a black oxide finish, providing corrosion resistance in demanding mechanical and structural applications. The grade 5 material rating and class 50 thread fit ensure reliable clamping force and dimensional consistency. A flat is included on the stud body for secure tool engagement during installation. This fastener is commonly installed by licensed trades in HVAC equipment assemblies, plumbing supports, and general mechanical systems where a through-bolt or double-end fastening point is required.

Equal double threaded studs like the 40509G are used where a threaded fastener must engage two separate components simultaneously, such as mounting brackets, flanged connections, equipment bases, and panel assemblies. The equal thread pattern means both ends carry identical 3/8-16 thread specifications, making the stud reversible. This part is suited for residential and light commercial mechanical installations where grade 5 alloy steel fasteners are specified.

Key Features

• 3/8-16 thread on both ends with equal thread length for reversible installation
• Alloy steel construction with grade 5 material rating for reliable tensile strength
• Black oxide finish for mild corrosion resistance in indoor mechanical environments
• Class 50 thread fit for consistent dimensional tolerance and proper mating
• Includes flat on body for wrench engagement during installation or removal
• 5.5-inch overall length suits bracket, base, and flange mounting applications

Compatibility

Designed as a standard 3/8-16 grade 5 alloy steel double threaded stud for use in mechanical, HVAC, plumbing, and structural fastening applications requiring equal double-end thread engagement.

Installation Notes

Installation is typically performed by HVAC technicians, plumbers, or mechanical contractors as part of equipment mounting or bracket assembly work. Power down or depressurize the system before servicing any assembly that uses this stud as a structural fastener. Use the flat on the stud body with an appropriate wrench to prevent thread damage during torquing. Follow the equipment manufacturer's fastener specifications and applicable mechanical codes for proper clamp load.