Value Collection B7SN0880550CP Threaded Stud Nut 7/8-9

Product Description

The VALUE COLLECTION B7SN0880550CP is a fully threaded stud and nut assembly designed for high-strength bolted connections in industrial and mechanical applications. Each stud is machined to a 7/8-9 thread size, measures 5.5 inches in length, and is manufactured from Grade B7 alloy steel without a surface coating. The 7B thread fit class ensures consistent engagement and reliable clamping force. This package includes four studs and eight nuts, making it suitable for multi-point flange assemblies, pressure vessel work, and structural fastening tasks where ASTM A193 compliance is required.

Grade B7 fully threaded studs are a standard fastener choice in HVAC equipment mounting, piping flange connections, pressure vessel assemblies, and general industrial fabrication. The 7/8-9 coarse thread configuration is widely used in heavy mechanical installations. Plumbers, pipefitters, millwrights, and mechanical contractors install these fasteners when ASTM A193 material certification is specified by the project engineer or required by code. The four-stud pack supports small flange jobs or replacement of damaged hardware in existing assemblies.

Key Features

• 7/8-9 coarse thread size with 7B fit class for consistent thread engagement
• 5.5-inch stud length suits standard flange bolt patterns requiring longer reach
• Grade B7 alloy steel construction meets ASTM A193 material standard
• Uncoated finish — no plating to account for in torque calculations
• Each package includes 4 studs and 8 nuts, ready for immediate installation
• UNSPSC Code 31163300 for procurement and cataloging compatibility

Compatibility

Designed as a general-purpose ASTM A193 Grade B7 fully threaded stud for use in flange, pressure vessel, and industrial mechanical assemblies specifying 7/8-9 coarse thread fasteners.

Installation Notes

Installation is typically performed by pipefitters, millwrights, or mechanical contractors following applicable ASME or project-specific torque and assembly procedures. De-energize and depressurize the system fully before removing or installing any flange fasteners. Use a calibrated torque wrench and follow the engineer-specified torque sequence for the flange or joint being assembled. Do not mix Grade B7 studs with lower-grade nuts or hardware that does not meet the assembly specification.