Value Collection D39147 Hex Head Cap Screw 5/8-11 X 1-1/2 in

Product Description

The VALUE COLLECTION D39147 is a fully threaded hex head cap screw designed for high-strength fastening applications. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers superior tensile strength and corrosion resistance compared to lower-grade alternatives. The 5/8-11 UNC thread size and 1-1/2-inch length under head make it well suited for demanding structural and mechanical assemblies. It conforms to ASME B18.2.1 dimensional standards, ensuring consistent fit across standard hex tooling and mating hardware. Licensed tradespeople and maintenance professionals rely on Grade 8 fasteners where shear and tensile loads exceed the capability of Grade 5 or commercial-grade hardware.

This screw is commonly used in industrial machinery, heavy equipment, structural steel connections, and mechanical assemblies where high clamping force and vibration resistance are required. The fully threaded body allows engagement along the entire length of the fastener, making it suitable for through-bolt applications and joints with shallow material thickness. It is appropriate for both original equipment manufacturing and field repair work across manufacturing, construction, and maintenance trades.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Zinc yellow dichromate finish provides corrosion and oxidation resistance
• Fully threaded body for maximum thread engagement in through-bolt applications
• 5/8-11 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• Conforms to ASME B18.2.1 dimensional standards
• Hex head drive accepts standard 15/16-inch hex wrenches and sockets

Compatibility

Designed for use with standard 5/8-11 UNC inch-series hex nuts, flat washers, and lock washers conforming to ASME dimensional standards. Suitable for tapped holes or through-bolt assemblies requiring a Grade 8 fastener in 5/8-11 thread size.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician familiar with proper fastener torque procedures for Grade 8 hardware. Always use a calibrated torque wrench and follow applicable engineering specifications or OEM torque tables for the joint being assembled. Ensure mating threads are clean and free of debris before installation. Do not mix inch and metric fasteners or substitute a lower-grade fastener where Grade 8 is specified.