Value Collection 451300BR Hex Head Cap Screw 1-8x11 Grade 8

Product Description

The VALUE COLLECTION 451300BR is a Grade 8 steel hex head cap screw with a 1-8 UNC thread and an 11-inch length under head. Partially threaded and finished bright uncoated, it is built to ASME B18.2.1 dimensional standards. Grade 8 steel provides high tensile and proof strength, making this fastener appropriate for heavy structural, mechanical, and industrial bolted joint applications. A 1-1/2 inch hex key size allows installation with standard industrial-drive tools. At 2.7 pounds, this is a substantial fastener suited for high-load assemblies. Machinists, millwrights, and maintenance mechanics are the primary installers.

This cap screw is used in heavy equipment assembly, structural steel fabrication, industrial machinery mounting, and OEM manufacturing applications where a large-diameter, high-strength fastener with a partially threaded shank is required. The partial threading provides a smooth shank section that improves shear strength in bolted joints and helps align mating components before full engagement. Applications typically involve thick material stacks where a fully threaded fastener would not be appropriate.

Key Features

• Grade 8 steel construction for high tensile strength in heavy-load joints
• Partially threaded shank improves shear resistance and component alignment
• 1-8 UNC thread standard for broad compatibility with inch-series nuts and tapped holes
• Bright uncoated finish — suitable for environments where plating is not required or where secondary coating will be applied
• Meets ASME B18.2.1 dimensional standards for consistent fit and interchangeability
• 1-1/2 inch hex drive accommodates standard industrial wrenches and sockets

Compatibility

Designed for use with 1-8 UNC inch-series hex nuts, washers, and tapped components meeting ASME B18.2.1 or equivalent dimensional standards in structural and industrial bolted assemblies.

Installation Notes

Installation should be performed by qualified mechanics or tradespeople familiar with proper torque procedures for Grade 8 inch-series fasteners. Always use a calibrated torque wrench and follow the applicable engineering or equipment specification for the joint being assembled. Ensure mating threads and bearing surfaces are clean and free of debris before assembly. Do not use impact tools without verifying joint specifications allow it.