Value Collection MP39112 Hex Head Cap Screw 1/2-13 X 3 in

Product Description

The VALUE COLLECTION MP39112 is a 1/2-13 x 3-inch hex head cap screw manufactured from Grade 8 steel with a zinc yellow dichromate finish. Partially threaded and conforming to ASME B18.2.1, this fastener is engineered for high-strength structural and mechanical assemblies. Grade 8 steel provides tensile strength suitable for demanding load-bearing applications. The zinc yellow dichromate coating offers corrosion resistance in both indoor and moderate outdoor environments. Thread size follows the Unified National Coarse (UNC) standard, ensuring broad compatibility with standard 1/2-13 tapped holes and nuts. Length measurement is taken under the head at 3 inches. Sold in a package of 10.

This cap screw is used in industrial, commercial, and mechanical assembly applications where high-clamping-force fasteners are required. Typical uses include equipment mounting, structural connections, machinery frames, and general fabrication work. The partial threading allows the unthreaded shank to act as a bearing surface in shear-loaded joints, making it a preferred choice for precision alignment and bolted connections subject to lateral loads. Suitable for use by millwrights, mechanical contractors, and maintenance technicians across a wide range of trades.

Key Features

• Grade 8 steel construction for high tensile strength in structural and mechanical assemblies
• Zinc yellow dichromate finish provides corrosion resistance
• Partially threaded shank for shear-load bearing surface and precision alignment
• UNC thread standard (1/2-13) for compatibility with standard nuts and tapped holes
• Conforms to ASME B18.2.1 dimensional standard
• Sold in a package of 10 pieces

Compatibility

Designed for use with standard 1/2-13 UNC nuts, washers, and tapped holes conforming to Unified National Coarse thread specifications per ASME B18.2.1.

Installation Notes

Installation is performed by millwrights, mechanical contractors, or maintenance technicians using standard hex tooling. Always ensure the mating tapped hole or nut meets the same UNC 1/2-13 thread specification before assembly. Torque to the appropriate Grade 8 fastener specification for the joint design as defined by your engineering documentation or applicable industry standards. Inspect fastener and mating components for damage or contamination before installation.