Value Collection 451651BR Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 451651BR is a fully threaded hex head cap screw in a 1-3/8-6 UNC thread profile with a 4-inch length under head. Manufactured from Grade 8 steel with a bright uncoated finish, this fastener meets ASME B18.2.1 dimensional standards. Grade 8 steel provides high tensile strength suitable for demanding structural and mechanical assemblies. It is installed using a 2-1/16-inch hex key or socket. Machinists, millwrights, equipment technicians, and maintenance trades work with fasteners of this class in heavy industrial and commercial applications.

This cap screw is suited for structural bolting, equipment mounting, and mechanical assembly applications where a fully threaded, high-strength fastener is required. The 1-3/8-6 UNC coarse thread pitch is standard for heavy-duty bolted connections in steel fabrication, machinery, and industrial maintenance. The uncoated bright finish is appropriate for dry indoor environments or assemblies where a coating is applied separately or not required.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Fully threaded along entire 4-inch length under head
• 1-3/8-6 UNC coarse thread for robust load-bearing connections
• Meets ASME B18.2.1 dimensional standard
• Bright uncoated finish suitable for controlled environments or secondary coating
• Driven with 2-1/16-inch hex socket or wrench

Compatibility

Designed as an OEM-style and general-use replacement or new-installation hex head cap screw for applications requiring a 1-3/8-6 UNC fully threaded fastener conforming to ASME B18.2.1.

Installation Notes

This fastener is typically installed by millwrights, maintenance technicians, or structural tradespeople using a properly sized 2-1/16-inch hex socket and torque wrench. Always consult the applicable engineering specification or joint design document for the correct torque value before installation. Ensure mating threads are clean and undamaged before assembly. Grade 8 fasteners should not be substituted with lower-grade hardware in structural or load-rated connections.