Gibraltar 41153G Unequal Double Threaded Stud 1-8 8in

Product Description

The GIBRALTAR 41153G is an unequal double threaded stud designed for heavy-duty fastening applications where two different thread engagement lengths are required at each end. Made from Grade 5 carbon steel with a black oxide finish, this stud measures 8 inches overall length with a 1-8 thread size. The long thread end runs 2.5 inches and the short thread end runs 1.5 inches, allowing for differentiated engagement depth on each side of a joint. Licensed tradespeople and maintenance technicians working with structural assemblies, machinery mounts, and equipment frames will find this stud suited for applications demanding reliable clamping force and thread integrity.

This unequal double threaded stud is used in industrial, mechanical, and trade service settings where a fixed stud must thread permanently into one component while a nut secures the mating part on the opposite end. The longer thread end is typically installed into a tapped hole or component body, while the shorter thread end accepts a nut or coupling. Typical applications include HVAC equipment mounting, machinery base plates, pump and motor assemblies, and structural bracketing in commercial and residential construction. The black oxide finish provides mild corrosion resistance in interior and semi-protected environments.

Key Features

• Unequal thread lengths: 2.5-inch long end and 1.5-inch short end for differentiated engagement
• Grade 5 carbon steel construction for reliable tensile and shear strength
• Black oxide finish for moderate corrosion resistance in protected environments
• 1-8 thread size and Thread Fit Class 50 for consistent fit in standard tapped holes
• 8-inch overall length accommodates thick substrate and clamping stack-ups
• No flat ground on body, allowing full cylindrical shank engagement

Compatibility

Designed as a standard replacement or new-installation unequal double threaded stud for applications requiring a 1-8 thread, 8-inch OAL fastener with Class 50 thread fit in carbon steel.

Installation Notes

Installation should be performed by a qualified mechanic or licensed tradesperson familiar with threaded fastener practices. Verify the tapped hole thread class and depth match the stud specifications before installation. Use an appropriate stud driver or double-nut method to torque the stud into the base component without damaging threads. Degrease mating surfaces and inspect threads for damage before assembly.