Gibraltar 41154G Unequal Double Threaded Stud 1-8 Thread 12 in

Product Description

The GIBRALTAR 41154G is an unequal double threaded stud designed for heavy-duty fastening applications where two different thread engagement lengths are required on a single fastener. Machined from Grade 5 carbon steel with a black oxide finish, this stud measures 12 inches overall length with a 1-8 UNC thread size. The long thread end extends 3 inches and the short thread end extends 1.5 inches, making it well suited for applications where differing embedment depths or clamping thicknesses must be accommodated. The black oxide finish provides light corrosion resistance and reduces surface glare. Machinists, maintenance technicians, and industrial tradespeople install this type of stud in structural, mechanical, and equipment assembly applications.

This stud is appropriate for industrial machinery assembly, structural bolt-up work, and mechanical equipment mounting where a fixed threaded rod with unequal engagement lengths is required. The 1-8 thread form is a coarse unified national thread, commonly found in heavy-duty mechanical and structural assemblies. The Grade 5 material rating indicates medium-strength carbon steel suitable for moderate to high-load fastening scenarios in both shop and field environments.

Key Features

• Unequal thread configuration with 3-inch long end and 1.5-inch short end for variable engagement depths
• 1-8 UNC coarse thread form for compatibility with standard heavy-duty threaded components
• Grade 5 carbon steel construction for medium-to-high strength fastening
• Black oxide finish for light corrosion resistance and reduced surface glare
• Thread Fit Class 5 for controlled tolerance and reliable thread engagement
• No flat ground on body, providing full cylindrical shank between threaded ends

Compatibility

Designed as an OEM-style and aftermarket replacement threaded stud for industrial mechanical assemblies, structural applications, and equipment mounting configurations using 1-8 UNC coarse thread fasteners.

Installation Notes

Installation of double threaded studs typically requires a stud driver, locking nut method, or double-nut technique to torque the stud into the receiving threaded component without damaging the exposed thread end. Always de-energize and lock out equipment before replacing or installing studs in mechanical assemblies. Verify thread fit and engagement depth on both ends before applying load. Follow applicable ASME or facility torque standards for Grade 5 fasteners in your specific application.