Value Collection KP44086 Hex Cap Screw 1/2-13 X 3-1/2 in Grade 8

Product Description

The VALUE COLLECTION KP44086 is a 1/2-13 x 3-1/2 inch hex head cap screw manufactured from Grade 8 steel with a zinc-plated finish. It features partial threading along the shank and conforms to ASTM A354 BD specifications, making it a high-strength fastener suited for heavy-duty bolted connections. This screw uses Unified National Coarse (UNC) thread form and is measured under the head at 3-1/2 inches. Maintenance technicians, millwrights, contractors, and trade professionals reach for Grade 8 fasteners when joint integrity under load is a primary concern.

This hex head cap screw is appropriate for structural and mechanical assemblies across industrial, commercial, and trade applications. The partial threading allows the unthreaded shank to bear shear loads while the threaded end engages a nut or tapped hole. Typical uses include equipment mounting, structural steel connections, machinery assembly, and general heavy-duty fastening where a high-strength, corrosion-resistant fastener is required. Sold in a package quantity of 25.

Key Features

• Grade 8 steel construction provides high tensile and proof load strength for demanding bolted joints
• Zinc-plated finish offers baseline corrosion resistance in general service environments
• Partially threaded shank allows shear load transfer through the unthreaded body
• UNC thread form (1/2-13) ensures broad compatibility with standard nuts and tapped holes
• Meets ASTM A354 BD standards for alloy steel bolts under heavy hex and related applications
• Packaged in quantities of 25 for efficient stocking and job-site use

Compatibility

Designed for use with standard 1/2-13 UNC nuts and tapped holes in inch-measurement assemblies requiring Grade 8 strength fasteners per ASTM A354 BD.

Installation Notes

Installation should be performed by qualified mechanical, structural, or trade personnel familiar with proper fastener torque procedures for Grade 8 hardware. Always ensure mating threads and bearing surfaces are clean and free of debris before assembly. Do not mix Grade 8 hardware with lower-grade nuts or washers, as mismatched hardware can reduce joint integrity. Consult applicable building, mechanical, or equipment codes for torque and installation requirements specific to the application.