Value Collection 451003BR Hex Head Cap Screw Grade 8 Steel

Product Description

The VALUE COLLECTION 451003BR is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from Grade 8 steel with a bright, uncoated finish, this fastener meets the dimensional and mechanical requirements of ASME B18.2.1. With a 1-1/8-7 UNC thread size and a 3-1/2 inch length under head, it delivers the clamping force needed for demanding bolted joints. The hex head accepts a 1-11/16 inch hex key or wrench. Installers and maintenance professionals working with heavy equipment, jigs, fixtures, or structural steel connections rely on Grade 8 fasteners where standard hardware-grade bolts are insufficient.

This cap screw is suited for use in fabrication shops, manufacturing facilities, heavy equipment maintenance, and structural assembly environments. The fully threaded shank provides thread engagement along the full length under the head, making it effective in applications where maximum grip length or thread-in depth is required. It is appropriate for use in static and moderate dynamic load applications where high-tensile fasteners are specified by engineers or equipment OEMs.

Key Features

• Grade 8 steel construction for high tensile and proof load ratings
• Fully threaded shank for maximum thread engagement over full length
• 1-1/8-7 UNC thread form for broad compatibility with standard nuts and tapped holes
• 3-1/2 inch length under head suits thick-flange and stacked-component installations
• Bright, uncoated finish maintains precise dimensional tolerances
• Conforms to ASME B18.2.1 hex head cap screw standard

Compatibility

Designed as an OEM-style replacement or general-use fastener for applications specifying a 1-1/8-7 UNC Grade 8 fully threaded hex head cap screw per ASME B18.2.1.

Installation Notes

Installation should be performed by qualified mechanics or tradespeople familiar with proper fastener torque procedures for Grade 8 hardware. Always use a calibrated torque wrench and apply the torque value specified by the equipment manufacturer or engineering documentation for the joint. Ensure mating threads in nuts or tapped holes are clean, undamaged, and of compatible thread class before assembly. Do not substitute Grade 8 fasteners with lower-grade hardware in structural or load-bearing joints without engineering approval.