Gibraltar 40305G Double Threaded Stud 1/4-20 3.5in Oal

Product Description

The GIBRALTAR 40305G is an equal double threaded stud with a 1/4-20 thread size and an overall length of 3.5 inches. It is manufactured from alloy steel with a black oxide finish, providing corrosion resistance and a hardened surface suitable for demanding mechanical assembly applications. Rated at Material Grade 5, this stud delivers reliable clamping strength in structural and mechanical fastening contexts. Licensed tradespeople and assembly technicians working in HVAC, plumbing, electrical enclosure, or general mechanical installations will find this stud suited for through-bolting and double-ended fastening scenarios where a standard hex bolt is not appropriate.

This equal double threaded stud is intended for use in applications requiring threaded engagement on both ends with no unthreaded shank in between. Typical install scenarios include mounting brackets, equipment panels, pump and motor assemblies, and other trade applications where a stud must thread into a tapped hole on one end and accept a nut on the other. The equal thread configuration means both ends carry the same 1/4-20 thread specification, simplifying parts inventory on the job.

Key Features

• Equal double threaded design with 1/4-20 thread on both ends for symmetrical fastening
• 3.5-inch overall length accommodates a range of panel and bracket thicknesses
• Alloy steel construction with Material Grade 5 rating for high tensile strength
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Thread Fit Class 50 ensures consistent thread engagement and reliable torque transfer
• No flat (fully threaded), maximizing thread engagement across the full stud length

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for mechanical assemblies requiring a 1/4-20 equal double threaded stud with a 3.5-inch overall length.

Installation Notes

Installation is typically performed by a licensed mechanic, HVAC technician, plumber, or electrician during equipment assembly or panel mounting. De-energize all electrical circuits and isolate any pressurized systems before disassembling fastened components. Use an appropriate thread-locking compound if vibration is a concern in the application. Verify that the receiving tapped hole meets the 1/4-20 thread specification before driving the stud to avoid cross-threading or stripping.