Dan-loc Bolt Gasket 000-09-080 Fully Threaded Stud B7

Product Description

The DAN-LOC BOLT GASKET 000-09-080 is a fully threaded stud machined from alloy steel to ASTM A193 Grade B7 specification. It features a 1-1/8-8 Unified National Coarse thread form and measures 8 inches in overall length. The uncoated finish leaves the base alloy steel exposed, making it well suited for applications where a coating would interfere with assembly tolerances or where the fastener will be further treated on-site. Plumbers, pipefitters, millwrights, and industrial maintenance technicians reach for B7 threaded studs when high-strength, reliable clamping force is required in demanding environments such as flanged pipe joints, pressure vessels, and heavy mechanical assemblies.

This stud is appropriate for use in industrial and commercial settings where ASTM A193 B7 alloy steel fasteners are specified. Typical applications include flanged pipe connections in process piping, heat exchangers, pump and valve assemblies, and structural bolting where elevated tensile strength is required. The 1-1/8-8 thread size is a common designation in larger-diameter flange bolting per ASME B16.5 and ASME B31 piping standards. Installation is performed by qualified pipefitters, millwrights, or industrial mechanics following applicable torque specifications and project engineering drawings.

Key Features

• Grade B7 alloy steel construction for high tensile strength in demanding bolting applications
• 1-1/8-8 UNC thread form across the full length of the stud
• 8 inches overall length provides ample engagement for standard and heavy-series flanges
• Uncoated finish allows on-site treatment or use as-is where base metal is acceptable
• Fully threaded design eliminates the need to position a thread-free shank during assembly

Compatibility

Designed as a high-strength replacement or new-installation fastener for flanged piping, pressure vessel, and heavy mechanical assemblies requiring 1-1/8-8 thread and Grade B7 alloy steel material per ASTM A193.

Installation Notes

Installation of large-diameter threaded studs in flanged pipe and pressure vessel applications should be performed by qualified pipefitters or millwrights following project engineering specifications and applicable codes such as ASME B31.1, B31.3, or PCC-1. De-energize and depressurize the system completely before disassembling any flanged joint. Apply thread lubricant or anti-seize compound only as specified by the engineering documents, as these affect the relationship between applied torque and actual clamp load. Do not substitute Grade B7 studs with lower-grade fasteners in pressure-rated assemblies without engineering approval.