Value Collection 451010BR Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 451010BR is a partially threaded hex head cap screw designed for heavy-duty mechanical and structural fastening applications. Manufactured from Grade 8 steel with a bright uncoated finish, this fastener measures 1-1/8-7 UNC thread size at 7 inches in length under head. Grade 8 steel provides high tensile strength suited to demanding bolted connections where clamp load and fatigue resistance matter. At 2.32 pounds, this is a substantial fastener intended for use in industrial machinery, structural assemblies, and heavy equipment. It conforms to ASME B18.2.1, the standard governing hex cap screw dimensions and tolerances.

This cap screw is used in industrial, commercial, and heavy equipment applications requiring a large-diameter, high-strength fastener. Partial threading allows the unthreaded shank to act as a precision locating surface within bored holes, making it appropriate for bolted joints where shear loads are present alongside clamping loads. Typical install scenarios include structural steel connections, heavy machinery frames, agricultural equipment, and large mechanical assemblies that demand a reliable, specification-grade fastener.

Key Features

• Grade 8 steel construction for high tensile and proof load capacity
• Partially threaded shank serves as a locating surface under shear loading
• 1-1/8-7 UNC thread form for wide compatibility with standard tapped holes and nuts
• Bright uncoated finish — no coating thickness to account for in tolerance-critical fits
• Conforms to ASME B18.2.1 for dimensional consistency
• 1-11/16 inch hex key size for standard impact and hand wrenching

Compatibility

Designed for use in any application requiring a 1-1/8-7 UNC partially threaded hex head cap screw meeting ASME B18.2.1 dimensional standards.

Installation Notes

Installation is typically performed by millwrights, ironworkers, or maintenance mechanics using standard combination or impact wrenches sized for a 1-11/16 inch hex. De-energize and lock out any machinery before fastener replacement or installation per OSHA lockout/tagout requirements. Use of hardened Grade 8 washers and matching Grade 8 nuts is recommended to maintain joint integrity at rated clamp load. Do not substitute a lower-grade nut or washer, as the mating hardware must be rated to match the fastener grade.