Value Collection 451320BR Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 451320BR is a heavy-duty hex head cap screw designed for high-strength fastening applications in structural, mechanical, and industrial assemblies. Manufactured from Grade 8 steel with a bright, uncoated finish, this fastener delivers superior tensile strength compared to lower-grade alternatives. The screw measures 13 inches in length under head with a 1-8 UNC thread size and features partial threading, making it well suited for clamping thick material stacks where full threading is not required. It conforms to ASME B18.2.1 dimensional standards. A licensed contractor, millwright, or experienced tradesperson typically selects this fastener for heavy equipment, structural steel, and large machinery installations.

This cap screw is used across a wide range of trade and industrial applications including HVAC equipment mounting, structural steel connections, heavy machinery assembly, and large-bracket anchoring. The 1-8 coarse thread pitch and Grade 8 rating make it appropriate for high-load, high-torque joints where a standard Grade 5 fastener would be insufficient. The bright uncoated surface is suitable for dry or protected indoor environments. A 1-1/2 inch hex key or appropriately sized socket wrench is required for installation.

Key Features

• Grade 8 steel construction for high tensile and proof-load strength
• 1-8 UNC coarse thread for reliable engagement in standard tapped holes
• Partially threaded shank allows secure clamping of thick material assemblies
• 13 inch length under head accommodates deep-reach fastening applications
• Meets ASME B18.2.1 dimensional standards for consistent fit and interchangeability
• Bright uncoated finish for use in dry or protected environments

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any 1-8 UNC tapped hole or nut conforming to ASME B18.2.1 specifications.

Installation Notes

Installation is performed by a qualified mechanic, millwright, or trades professional using a 1-1/2 inch hex socket or wrench. Always verify the mating thread is 1-8 UNC before installation to avoid cross-threading. De-energize, depressurize, or otherwise lock out any equipment before replacing or tightening structural fasteners per applicable OSHA lockout/tagout procedures. Do not exceed the proof load of the fastener or the rated capacity of the mating material.