Value Collection B8MSTFE0875C425 Fully Threaded Stud 7/8-9

Product Description

The VALUE COLLECTION B8MSTFE0875C425 is a fully threaded stud machined from 316 stainless steel with a 7/8-9 UNC thread form and an overall length of 4.25 inches. The stud runs thread from end to end with no unthreaded shank, making it suitable for through-bolting applications where the full length must engage a nut or tapped hole. The uncoated finish leaves the base 316 stainless alloy exposed, offering strong resistance to corrosion in wet, chemical, or marine environments. Thread fit is Class 2A, the standard external thread tolerance class for general fastener applications. Licensed HVAC, plumbing, mechanical, and industrial maintenance technicians commonly install this type of hardware during equipment assembly, pipe flange work, and structural bracketing.

This stud is suited for applications requiring corrosion-resistant fastening in demanding environments, including process piping, pump flanges, chemical handling equipment, and marine or coastal installations. The 316 stainless steel alloy provides improved chloride resistance compared to 304 stainless, making it a common choice for coastal, food-service, and chemical-process environments. The right-hand thread direction follows standard convention and is compatible with standard 7/8-9 nuts and threaded plates. The B8M designation aligns with ASTM material standards for high-strength stainless fastener studs used in pressure and temperature applications.

Key Features

• Fully threaded along the entire 4.25-inch length — no unthreaded shank
• 316 stainless steel construction for enhanced corrosion and chloride resistance
• 7/8-9 UNC right-hand thread, Class 2A fit for standard external thread tolerance
• Uncoated plain finish — bare stainless, no plating or coating to degrade in harsh environments
• B8M standard designation indicating suitability for pressure and elevated-temperature fastening service

Compatibility

Designed as a standard fully threaded stud for use with any 7/8-9 UNC-threaded nut, coupling nut, or tapped hole conforming to Class 2B internal thread tolerances.

Installation Notes

Installation of fully threaded studs is typically performed by licensed millwrights, pipefitters, or mechanical technicians. Always de-energize and depressurize the equipment or piping system before removing or installing fasteners. Use a proper stud driver or double-nut method to install without damaging threads. Apply an appropriate anti-seize compound when installing stainless fasteners into stainless tapped holes to prevent galling.