Value Collection AB7STFE0875C425 Threaded Stud 7/8-9

Product Description

The VALUE COLLECTION AB7STFE0875C425 is a fully threaded stud machined from Grade B7 alloy steel with a plain uncoated finish. It carries a 7/8-9 UNC thread form across its entire 4.25-inch overall length, meaning there is no unthreaded shank — the thread runs shoulder to shoulder. Class 2A thread fit provides the standard external thread tolerance used in general industrial and structural fastener applications. Right-hand thread direction follows standard convention. This stud is installed by maintenance mechanics, millwrights, pipefitters, and general industrial tradespeople working on flanged connections, machinery frames, and structural assemblies.

Fully threaded studs in this size range are commonly used in flange bolt-up applications, equipment mounting, and structural clamping where a nut is run on both ends or the stud is threaded into a tapped hole on one end. The 7/8-9 coarse thread and Grade B7 material make this suitable for moderate- to high-load applications including pressure vessel flanges, pump bases, and heavy equipment frames in industrial maintenance environments.

Key Features

• Fully threaded along entire 4.25-inch length — no unthreaded shank
• 7/8-9 UNC coarse thread, right-hand direction
• Grade B7 alloy steel construction for elevated strength
• Class 2A thread fit tolerance for standard industrial fastener compatibility
• Plain uncoated finish — suitable for painting, plating, or use as-is

Compatibility

Designed as a standard fully threaded stud for use with 7/8-9 UNC threaded nuts, couplings, and tapped holes in industrial and mechanical assembly applications.

Installation Notes

Installation is typically performed by qualified mechanics or tradespeople using appropriate wrenches, stud drivers, or double-nut methods. De-energize and depressurize any system before replacing studs on pressurized flanges or live equipment. Apply thread lubricant or anti-seize compound per your facility or code requirements before torquing. Follow applicable ASME, ASTM, or equipment manufacturer torque specifications for the assembly being serviced — do not estimate torque values for critical flange joints.