Value Collection B7SN1130650UP Threaded Stud Nut 1-1/8-8 Grade B7

Product Description

The VALUE COLLECTION B7SN1130650UP is a fully threaded stud with nut set designed for high-strength fastening applications in industrial, mechanical, and process piping systems. Each stud is manufactured from Grade B7 alloy steel to ASTM A193 standards, providing reliable tensile strength in demanding service conditions. The thread size is 1-1/8-8 (1-1/8 inch nominal diameter, 8 threads per inch, UN series) with a 7B class of fit, and each stud measures 6.5 inches in length. The uncoated finish is standard for applications where hardware will be torqued under controlled conditions or used with compatible lubricants. This package includes 4 studs and 8 nuts.

These studs are commonly used in flange bolting, pressure vessel assembly, pump and valve mounting, and structural connections where ASTM A193 Grade B7 material compliance is required. The 1-1/8-8 thread configuration is a standard heavy-hex bolt pattern seen in industrial piping, heat exchangers, and mechanical equipment installations across refining, chemical, power generation, and general manufacturing environments. Licensed millwrights, pipefitters, and industrial mechanics are the primary installers of this fastener type.

Key Features

• ASTM A193 Grade B7 alloy steel construction for high-strength, high-temperature service
• 1-1/8-8 thread size with 7B class of fit for precision thread engagement
• 6.5-inch stud length suits standard flange and heavy mechanical assembly applications
• Fully threaded along entire length for flexible engagement depth
• Uncoated finish — compatible with field-applied lubricants or anti-seize compounds
• Each package includes 4 studs and 8 nuts (2 nuts per stud)

Compatibility

Designed as an ASTM A193 Grade B7 compliant fastener for industrial flanges, pressure vessels, and mechanical assemblies requiring 1-1/8-8 threaded studs. Confirm flange class, gasket type, and applicable torque specifications with project engineering documentation before installation.

Installation Notes

Installation should be performed by a qualified millwright, pipefitter, or mechanical technician following applicable ASME, ASTM, and facility-specific bolt torque procedures. De-energize, depressurize, and drain the system before disassembling any flanged joint. Apply an appropriate anti-seize compound or lubricant as required by the torque specification table in use. Do not reuse studs that show thread damage, stretching, or corrosion.