Value Collection 451450BR Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 451450BR is a heavy-duty hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. This fastener features a 1-1/8-7 UNC thread with a 14-inch length under head and is manufactured from Grade 8 steel with a bright uncoated finish. Partially threaded along the shank, it provides a strong clamping grip where a smooth bearing surface between mating parts is required. Produced to ASME B18.2.1 standards, it is suitable for demanding bolted joint applications where load capacity and dimensional consistency are critical. Installers drive it with a 1-11/16-inch hex wrench or socket.

This cap screw is used in heavy equipment assembly, structural steel fabrication, machinery mounting, and similar high-load bolted connections. Grade 8 steel provides higher tensile strength than Grades 2 and 5, making it appropriate for applications subject to vibration, shear, or significant static loads. The partially threaded shank makes it particularly well suited for through-bolt and lap-joint configurations where thread engagement is concentrated at the nut end.

Key Features

• Grade 8 steel construction for high tensile strength in demanding fastening applications
• 1-1/8-7 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• 14-inch length under head accommodates thick or stacked material assemblies
• Partially threaded shank provides clean bearing surface between clamped components
• Bright uncoated finish — suitable for dry or controlled environments
• Manufactured to ASME B18.2.1 for consistent dimensional tolerances

Compatibility

Designed as a standard ASME B18.2.1 inch-series hex head cap screw; compatible with 1-1/8-7 UNC nuts, washers, and tapped holes conforming to UNC thread standards.

Installation Notes

Installation is typically performed by millwrights, ironworkers, or maintenance mechanics using a 1-11/16-inch socket or wrench. Always verify thread engagement depth and joint design before torquing. Follow ASME or applicable structural codes for torque values and joint preload requirements. Inspect threads and mating surfaces for damage or contamination before assembly.