Value Collection 39377 Hex Head Cap Screw 7/16-20 X 3/4 in Grade 8

Product Description

The VALUE COLLECTION 39377 is a fully threaded hex head cap screw designed for high-strength fastening applications. It features a 7/16-20 UNF thread size and a 3/4-inch length under head, manufactured from Grade 8 steel for demanding mechanical and structural assemblies. The zinc yellow dichromate finish provides corrosion resistance and is the standard identifier for Grade 8 hardware. This fastener meets ASME B18.2.1 and SAE J429 specifications, confirming dimensional accuracy and mechanical property requirements. It is used by millwrights, maintenance technicians, equipment assemblers, and trade professionals who require a reliable, high-tensile hex cap screw in inch measurements.

This screw is suited for heavy-duty bolted connections in industrial machinery, automotive assemblies, agricultural equipment, and general mechanical fabrication where Grade 8 tensile strength is required. The fully threaded body maximizes thread engagement across the full grip length, making it appropriate for applications with thin materials or where adjustable clamping depth is needed. Sold in a package quantity of 50, it is practical for both single-use repair work and recurring production or maintenance tasks.

Key Features

• Grade 8 steel construction meets SAE J429 minimum proof load and tensile strength requirements
• Fully threaded body provides maximum thread engagement along the entire shank
• 7/16-20 UNF thread form for fine-thread precision and vibration resistance
• Zinc yellow dichromate finish offers corrosion protection and serves as the standard Grade 8 visual identifier
• Conforms to ASME B18.2.1 dimensional standards for hex cap screws
• Package quantity of 50 units per order

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application requiring a 7/16-20 UNF fully threaded fastener with Grade 8 mechanical properties.

Installation Notes

Installation is performed by mechanics, millwrights, or maintenance technicians using a standard hex wrench or socket set sized for a 7/16-20 fastener. Always ensure mating threads are clean and free of debris before assembly. Do not exceed rated torque specifications for Grade 8 hardware as published in applicable engineering references or equipment service manuals. Inspect the zinc dichromate finish for damage before installation; replace any fastener showing thread deformation or coating compromise.