Value Collection 451107PR Hex Head Cap Screw 1/2-13 X 9 in

Product Description

The VALUE COLLECTION 451107PR is a Grade 8 steel hex head cap screw designed for heavy-duty fastening applications requiring high tensile strength. Measuring 1/2-13 thread size with a 9-inch length under head, this screw features partial threading and a bright uncoated finish. It conforms to ASME B18.2.1 standards and uses a UNC thread form. Installed with a 3/4-inch hex key or wrench, this fastener is suited for structural, mechanical, and industrial assemblies where Grade 8 performance is specified. Weighing approximately 0.51 pounds, it ships individually and is sold per piece.

This hex head cap screw is used across a wide range of trade and industrial applications including HVAC equipment mounting, heavy mechanical assemblies, structural steel connections, and machinery fabrication. The partially threaded shank provides a bearing surface in the grip area, making it appropriate for joints where shear load transfer or precise clamping is required. The bright uncoated surface is suitable for indoor or protected environments. Trade professionals including millwrights, pipefitters, HVAC mechanics, and general contractors commonly install this fastener type.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 1/2-13 UNC thread size with 9-inch length under head
• Partially threaded shank for shear load and clamping applications
• Bright uncoated finish - suitable for dry or protected environments
• Meets ASME B18.2.1 dimensional standards
• Driven with a standard 3/4-inch hex wrench or socket

Compatibility

Designed as a standard 1/2-13 UNC Grade 8 hex head cap screw conforming to ASME B18.2.1, compatible with any application specifying that thread size, length, and material grade.

Installation Notes

Installation of Grade 8 fasteners is typically performed by qualified mechanics or tradespeople using a calibrated torque wrench to achieve the specified clamp load for the joint design. Always ensure mating threads are clean and undamaged before installation. Do not use impact drivers at full speed on Grade 8 fasteners without verifying torque compliance. Replace any fastener showing signs of thread damage, corrosion, or deformation.