Gibraltar ST100-25-G Double Threaded Stud 5/16-18

Product Description

The GIBRALTAR ST100-25-G is an equal double threaded stud with a 5/16-18 thread size and an overall length of 2.5 inches. It is machined from grade 1117 carbon steel and finished in black oxide for corrosion resistance in standard service environments. This stud threads from both ends with left and right hand thread direction, allowing it to be driven into a tapped hole on one end while accepting a nut or mating part on the other. Plumbers, HVAC technicians, electricians, and general trade contractors use double threaded studs when a through-bolt is not practical or when a removable fastener anchor point is required in metal or structural assemblies.

This stud is suited for light mechanical and structural fastening applications across residential and commercial trade work. Typical uses include equipment mounting, bracket attachment, and panel assembly where a fixed threaded post is needed. The black oxide finish provides mild surface protection appropriate for dry or low-moisture indoor installations. At 2.5 inches OAL with a 5/16-18 thread pitch, this stud fits standard coarse-thread tapped holes and accepts commonly available 5/16-18 hardware.

Key Features

• Equal double threaded design with left and right thread direction for versatile fastening
• 5/16-18 coarse thread size compatible with standard coarse-thread hardware
• 2.5 inch overall length suits moderate-depth mounting applications
• Grade 1117 carbon steel construction for reliable tensile strength in general trade use
• Black oxide finish provides mild corrosion resistance and reduces glare on the fastener surface

Compatibility

Designed as a general-purpose equal double threaded stud for use in any application requiring a 5/16-18 coarse thread fastener anchor point in carbon steel construction.

Installation Notes

Installation is typically performed by the trade professional overseeing the mechanical or structural assembly. Power down and de-energize any equipment before installing studs near electrical components. Use a stud driver or two jam nuts to torque the stud into the tapped hole without damaging threads. Verify thread engagement depth meets the requirements of the assembly per applicable codes before applying load.