Value Collection B7SN1130750UP Threaded Stud Nut 1-1/8-8 B7

Product Description

The VALUE COLLECTION B7SN1130750UP is a fully threaded stud and nut assembly manufactured from alloy steel to ASTM A193 Grade B7 specification. Each stud measures 7.5 inches in length with a 1-1/8-8 thread size and a 7B class of fit, providing a controlled, tight-tolerance thread engagement suitable for high-strength bolting applications. The uncoated finish leaves the base steel exposed, making these studs appropriate for use where coatings would interfere with precise dimensional requirements or where field treatment is preferred. Plumbers, pipefitters, and millwrights commonly install Grade B7 studs in pressure vessel, flange, and structural fastening applications.

This assembly is suited for industrial and commercial installations requiring high-strength threaded fasteners. Grade B7 alloy steel studs are a common choice in pressure flange connections, heat exchangers, valve bodies, and heavy mechanical assemblies. Each package contains four studs and eight nuts, providing matched hardware for four complete fastening points. The 7B class of fit is consistent with standard industrial bolting practices and pairs with 2H heavy hex nuts in many flanged joint applications.

Key Features

• Grade B7 alloy steel construction meets ASTM A193 specification for high-strength bolting
• 1-1/8-8 thread size with 7B class of fit for controlled thread engagement
• 7.5-inch stud length accommodates standard flange and structural stack-ups
• Uncoated finish suitable for applications requiring bare steel or field-applied treatment
• Each package includes four studs and eight nuts for complete fastening sets
• UNSPSC Code 31163300 for straightforward procurement classification

Compatibility

Designed as a high-strength OEM-style replacement or new-installation fastener for industrial flanged joints, pressure vessels, and mechanical assemblies requiring ASTM A193 Grade B7 fully threaded studs in a 1-1/8-8 thread configuration.

Installation Notes

Grade B7 stud installation is typically performed by licensed pipefitters or millwrights in accordance with applicable ASME and ASTM bolting procedures. Always depressurize and isolate the system before replacing flange fasteners. Use calibrated torque equipment and follow the applicable flange joint assembly standard for the system pressure class. Do not mix Grade B7 studs with non-compatible nut grades in pressure-rated assemblies.