Value Collection 451280BR Hex Head Cap Screw 7/8-9 X 11 in

Product Description

The VALUE COLLECTION 451280BR is a Grade 8 steel hex head cap screw designed for high-strength fastening applications. Measuring 7/8-9 thread size with an 11-inch length under head, this fastener features Unified National Coarse (UNC) threading and is partially threaded along its shank. The bright, uncoated finish leaves the steel in its natural state, making it suitable for applications where additional coating is not required. It conforms to ASME B18.2.1 standards, ensuring dimensional consistency for critical assemblies. Maintenance technicians, millwrights, and mechanical contractors typically install this screw in structural, industrial, and heavy equipment applications.

This cap screw is suited for use in industrial machinery, structural steel assemblies, heavy equipment, and mechanical systems that demand high-strength fasteners. The partial threading is appropriate for clamping through thick materials, allowing the unthreaded shank to bear shear loads. Trade professionals in manufacturing, construction, and general maintenance will find this screw applicable wherever a large-diameter, long-length Grade 8 fastener is specified. Its 1-15/16-inch hex key drive size accommodates standard industrial wrenching tools.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Partially threaded shank supports shear-load bearing in thick-section assemblies
• UNC thread form (7/8-9) for broad compatibility with standard nuts and tapped holes
• Bright, uncoated finish — no coating to interfere with precise dimensional tolerances
• Conforms to ASME B18.2.1 for consistent dimensional standards
• 1-15/16-inch hex drive size for use with standard industrial wrenches or sockets

Compatibility

Designed as an OEM-style replacement or maintenance fastener for industrial machinery, structural assemblies, and heavy equipment requiring a 7/8-9 UNC, Grade 8 hex head cap screw with an 11-inch length under head.

Installation Notes

Installation should be performed by a qualified millwright, mechanic, or maintenance technician familiar with high-strength fastener procedures. De-energize and lock out all affected equipment before beginning fastener replacement or assembly work, following applicable OSHA lockout/tagout procedures. Use a calibrated torque wrench sized for a 1-15/16-inch hex drive to achieve the specified clamp load per your engineering or equipment manual. Do not substitute a lower-grade fastener in any application that specifies Grade 8.