Value Collection 39123 Hex Head Cap Screw 1/2-13 X 7-1/2 in Grade 8

Product Description

The VALUE COLLECTION 39123 is a partially threaded hex head cap screw designed for heavy-duty bolted assemblies where high tensile strength and corrosion resistance are required. Manufactured from Grade 8 steel and finished with a zinc yellow dichromate coating, this fastener meets ASME B18.2.1 dimensional standards. The 1/2-13 UNC thread and 7-1/2 inch length under head make it suitable for thick structural connections, machinery mounts, and industrial equipment assemblies. Installation is performed with standard hex or socket tooling. Sold in a package quantity of 10.

This cap screw is used in industrial, commercial, and heavy mechanical applications where Grade 8 tensile strength is specified. Typical uses include structural steel fabrication, heavy equipment assembly, and mechanical maintenance work. The partial threading is appropriate for joints where a grip length through unthreaded material is required before thread engagement. Machinists, millwrights, and maintenance technicians commonly install fasteners of this type.

Key Features

• Grade 8 steel construction for high tensile and proof load ratings
• Zinc yellow dichromate finish provides corrosion resistance
• Partially threaded shank allows for a full grip length in bolted joints
• 1/2-13 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• Meets ASME B18.2.1 dimensional standards for hex head cap screws
• Sold in packs of 10 with a minimum order quantity of 1

Compatibility

Designed for use with standard 1/2-13 UNC inch-series hex nuts, flat washers, and lock washers in Grade 8 or compatible hardware assemblies.

Installation Notes

Installation requires a properly sized hex wrench, socket, or impact driver rated for the fastener grade. Torque to the value specified by the joint designer or applicable engineering standard for Grade 8 fasteners at this diameter. Ensure mating nuts and tapped holes are clean and free of debris before assembly. Do not mix Grade 8 fasteners with lower-grade nuts, as this can compromise joint integrity.