Gibraltar 40450G Unequal Double Threaded Stud 5/16-18

Product Description

The GIBRALTAR 40450G is an unequal double threaded stud designed for mechanical fastening applications where two different thread engagement lengths are required at each end. Manufactured from carbon steel with a black oxide finish, this stud features a 5/16-18 thread size and an overall length of 1.5 inches. The long thread measures 0.75 inches and the short thread measures 0.5 inches, providing asymmetric engagement suited to assemblies where one end anchors into a tapped hole and the other accepts a nut or fitting. It carries a Material Grade 5 rating and Thread Fit Class 50. Machinists, millwrights, and maintenance technicians typically install this hardware in equipment assembly and repair work.

This stud is used in industrial and commercial mechanical assemblies where a permanent or semi-permanent threaded connection is needed between two components. The unequal thread length configuration is common in gearbox covers, pump housings, compressor frames, and general machinery where one side must thread deeper into a base component. The black oxide finish provides mild corrosion resistance suitable for indoor or protected environments.

Key Features

• Unequal thread design: 0.75-inch long end and 0.5-inch short end for asymmetric engagement
• 5/16-18 UNC thread size for broad hardware compatibility
• Carbon steel construction, Material Grade 5 for reliable tensile strength
• Black oxide finish for mild corrosion resistance in protected environments
• Thread Fit Class 50 for consistent dimensional tolerance
• No flat — fully threaded stud body with no wrench flat

Compatibility

Designed as a standard replacement or stock fastener for mechanical assemblies requiring a 5/16-18 unequal double threaded stud with a 1.5-inch overall length.

Installation Notes

Threaded studs of this type are installed by machinists, millwrights, or maintenance technicians using a stud driver or double-nut method — never use pliers directly on the threads. Always verify that the tapped receiving hole matches the 5/16-18 thread specification and is free of debris before installation. Follow applicable equipment manufacturer torque requirements for the assembly. De-energize and lock out equipment before servicing any fasteners in live machinery.