Value Collection D39129 Hex Head Cap Screw 9/16-12 X 1 in

Product Description

The VALUE COLLECTION D39129 is a fully threaded hex head cap screw in the 9/16-12 UNC thread size with a 1 inch length under head. Manufactured from Grade 8 steel, this fastener delivers high tensile strength suited for demanding mechanical and structural assemblies. The zinc yellow dichromate finish provides corrosion resistance and is visually distinct for easy identification in Grade 8 applications. It conforms to ASME B18.2.1 dimensional standards, making it a reliable choice for engineers, machinists, and maintenance professionals working to specification.

This hex head cap screw is used across a wide range of industrial, mechanical, and equipment assembly applications where high-strength fasteners are required. Grade 8 fasteners are commonly specified for heavy equipment, automotive, agricultural machinery, and structural connections that see significant load or vibration. The fully threaded design provides maximum thread engagement throughout the grip length, making it well suited for thinner material stacks or applications where full clamping force is needed from head to end.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Fully threaded shank for maximum thread engagement
• 9/16-12 UNC thread form per standard Unified National Coarse specification
• 1 inch length measured under head per ASME B18.2.1
• Zinc yellow dichromate finish for corrosion resistance and Grade 8 identification
• Conforms to ASME B18.2.1 dimensional standards

Compatibility

Designed as a standard replacement or general-use hex head cap screw for any application requiring a 9/16-12 UNC fully threaded Grade 8 fastener with a 1 inch length under head.

Installation Notes

Installation is performed by mechanical and maintenance trades using standard hex wrenches or sockets sized for a 9/16-12 hex head cap screw. Ensure mating threaded holes or nuts are clean and free of debris before installation. Grade 8 fasteners should be torqued to the value specified by the equipment manufacturer or applicable engineering standard for the joint design. Do not mix Grade 8 fasteners with lower-grade nuts or tapped holes that are not rated for the corresponding load.