Value Collection B7SN1250700UP Threaded Stud Nut 1-1/4-8 Grade B7

Product Description

The VALUE COLLECTION B7SN1250700UP is a fully threaded stud and nut assembly manufactured from Grade B7 alloy steel to ASTM A193 standards. Each stud measures 7 inches in overall length with a 1-1/4-8 thread size and a 7B class of fit, making it well suited for high-strength bolted connections in demanding industrial and mechanical applications. The uncoated finish leaves the bare steel surface exposed, which is standard practice when additional coatings or plating will be applied on-site or when the assembly environment does not require corrosion protection. This package contains 4 studs and 8 nuts. Installation is typically handled by millwrights, pipefitters, or maintenance mechanics working on flanged connections, structural assemblies, or pressure vessel applications.

Grade B7 fully threaded studs are a common choice for flanged pipe joints, pressure vessel closures, heat exchanger assemblies, and heavy equipment mounting where high tensile strength and reliable clamp load are required. The 1-1/4-8 Unified National Coarse thread profile is widely used in industrial piping and structural steel applications. The 7B thread fit class provides the standard allowance and tolerance for general-purpose external and internal thread assemblies. This product ships in a pack of 4 studs with 8 nuts, providing hardware for up to 4 bolt positions.

Key Features

• Grade B7 alloy steel construction meets ASTM A193 requirements for high-strength stud bolting
• 1-1/4-8 thread size with 7B class of fit for standard industrial thread assemblies
• Fully threaded 7-inch length allows flexible nut positioning along the entire stud
• Uncoated finish suitable for field coating, plating, or dry assembly environments
• Package includes 4 studs and 8 nuts, providing a complete fastener set per shipment
• ASTM A193 standard compliance supports use in pressure and temperature service applications

Compatibility

Designed as a standard Grade B7 ASTM A193 fully threaded stud for industrial flanged connections, pressure vessel assemblies, and structural bolting applications requiring 1-1/4-8 thread size.

Installation Notes

Installation is typically performed by licensed pipefitters, millwrights, or qualified maintenance mechanics. Isolate and depressurize any piping or pressure vessel system before removing or installing stud bolts. Follow applicable ASME, ANSI, or facility torque specifications for the flange class and gasket type in use. Do not reuse studs that show thread damage, corrosion, or deformation after prior service.