Gibraltar ST3-35-G Double Threaded Stud 5/8-11 3-1/2 in

Product Description

The GIBRALTAR ST3-35-G is an equal double threaded stud with a 5/8-11 thread size and an overall length of 3.5 inches. It is machined from 1117 grade carbon steel and finished in black oxide for basic corrosion resistance in dry or mildly exposed environments. Double threaded studs accept fasteners on both ends simultaneously, making them a standard choice for through-bolting, mounting, and assembly applications where a bolt head is not practical. The equal configuration means both threaded sections are the same length and pitch. This part ships individually and is sized for use in mechanical and structural assembly work.

The ST3-35-G suits general mechanical assembly, equipment mounting, and structural fastening tasks across HVAC, plumbing, electrical enclosure, and light industrial applications. It is appropriate for use wherever a 5/8-11 UNC thread pattern is required and a continuous or interrupted stud mount is preferred over a standard hex bolt. The left and right thread direction means standard right-hand threading is present on both ends, allowing engagement from either side of an assembly.

Key Features

• 5/8-11 UNC thread size on both ends for broad fastener compatibility
• 3.5-inch overall length suits medium-depth through-bolt and stud-mount configurations
• 1117 grade carbon steel construction for reliable tensile strength in mechanical assemblies
• Black oxide finish reduces surface corrosion in dry indoor environments
• Equal double threaded design provides identical thread engagement on both ends
• Left and right thread direction allows standard hex nut engagement from either side

Compatibility

Designed as a general-purpose equal double threaded stud for mechanical and structural assemblies requiring a 5/8-11 UNC thread pattern.

Installation Notes

Installation is typically performed by a mechanic, millwright, or maintenance technician using standard open-end or box wrenches sized for 5/8-inch fasteners. Power down and de-energize any associated equipment before inserting or removing studs in electrical or HVAC panel applications. Do not over-torque during installation into softer base materials, as 1117 carbon steel studs can damage threads in aluminum or cast housings. Apply thread-locking compound or anti-seize as required by the assembly specification.