Value Collection 451027BR Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 451027BR is a fully threaded hex head cap screw designed for heavy-duty fastening applications. It features a 1-1/4-7 UNC thread size with a 2-1/2-inch length under head, manufactured from Grade 8 steel with a bright, uncoated finish. Conforming to ASME B18.2.1, this fastener meets the dimensional and mechanical standards required in structural, industrial, and machinery assembly work. The Grade 8 designation indicates high tensile strength, making it suitable for demanding bolted joint applications where fastener integrity is critical.

This cap screw is used in industrial machinery assembly, structural steel connections, heavy equipment maintenance, and general fabrication where a high-strength UNC fastener is required. The fully threaded configuration allows engagement along the entire shank length, providing maximum thread contact in thinner material applications. It is installed by machinists, millwrights, maintenance technicians, and mechanical contractors working with inch-series hardware.

Key Features

• Grade 8 steel construction for high tensile strength in demanding bolted joints
• Fully threaded shank for maximum thread engagement along the full 2-1/2-inch length under head
• 1-1/4-7 UNC thread standard for compatibility with standard inch-series nuts and tapped holes
• Bright, uncoated finish for use in dry or controlled environments
• Conforms to ASME B18.2.1 dimensional standards
• 1-11/16-inch hex key size for use with standard hex wrenches and sockets

Compatibility

Designed as a standard inch-series hex head cap screw for use with 1-1/4-7 UNC tapped holes and nuts conforming to ASME B18.2.1 specifications.

Installation Notes

Installation requires a 1-11/16-inch hex wrench or socket. Follow applicable torque specifications for Grade 8 fasteners as defined by engineering standards or equipment manufacturer documentation. Ensure mating threads are clean and free of debris before installation. Inspect the fastener for damage prior to use and never reuse a fastener that has been overtorqued or shows signs of thread deformation.