Value Collection 451833BR Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 451833BR is a heavy-duty hex head cap screw designed for high-load fastening applications in industrial, structural, and mechanical assembly work. Manufactured from Grade 8 steel with a bright uncoated finish, this fastener delivers the tensile strength required for demanding bolted joints. The screw features a 1-3/4-5 UNC thread size with a 10-inch length under the head and is partially threaded, making it well suited for clamping applications where a smooth shank is needed in the joint. At 8.5 pounds, this is a substantial fastener intended for heavy structural work. Installation requires a 2-5/8-inch hex key or wrench. Machinists, millwrights, structural ironworkers, and heavy equipment technicians are the typical trades installing this fastener.

This cap screw is used in structural steel connections, heavy equipment frames, industrial machinery mounts, and large fabricated assemblies where Grade 8 strength is specified. The UNC thread form and ASME B18.2.1 dimensional standard make it a recognized fit for applications requiring compliance with standard inch-series fastener specifications. Partial threading allows the unthreaded shank to bear shear loads in close-tolerance bolt holes, a common requirement in machinery and structural bolted connections.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 1-3/4-5 UNC thread form — coarse pitch for reliable engagement in heavy section material
• Partially threaded shank to carry shear loads in close-tolerance applications
• 10-inch length under head accommodates thick structural members and stacked assemblies
• Bright uncoated finish — compatible with field painting or coating after installation
• Conforms to ASME B18.2.1 dimensional standard for inch-series hex head cap screws

Compatibility

Designed as a standard inch-series hex head cap screw conforming to ASME B18.2.1, suitable for use in any application specifying a 1-3/4-5 UNC x 10-inch Grade 8 partially threaded fastener.

Installation Notes

Installation requires a 2-5/8-inch hex wrench or impact socket rated for Grade 8 torque loads. De-energize, depressurize, or support all equipment and structures before removing or replacing structural fasteners. Do not substitute a lower-grade fastener where Grade 8 is specified by an engineer or equipment manufacturer. Follow applicable torque specifications from the equipment OEM or a qualified engineer, as no torque value is specified in the product data.