Value Collection 4496CH8O Hex Head Cap Screw 7/16-20 X 6 in

Product Description

The VALUE COLLECTION 4496CH8O is a partially threaded hex head cap screw engineered for high-strength fastening applications in mechanical, industrial, and structural assemblies. Sized at 7/16-20 UNF x 6 inches (length under head), this fastener is manufactured from Grade 8 steel with a zinc yellow dichromate finish that provides corrosion resistance and easy identification. With a tensile strength of 150,000 psi, it is suited for demanding load-bearing connections where standard Grade 5 fasteners are insufficient. Licensed tradespeople, millwrights, and maintenance technicians working with heavy equipment or structural steel rely on Grade 8 hardware to meet critical joint specifications.

This screw is used in high-load bolted joints across manufacturing, agricultural equipment, heavy machinery, and general industrial maintenance. The 7/16-20 UNF thread pitch delivers finer thread engagement compared to UNC equivalents, making it appropriate where vibration resistance or precise clamping force is required. The partial threading keeps the shank smooth along the grip length, which supports shear loading in close-tolerance bores. It meets ASME B18.2.1 and SAE J429 standards, confirming compliance with dimensional and mechanical property requirements for inch-series hex cap screws.

Key Features

• Grade 8 steel with 150,000 psi tensile strength for high-load fastening
• Zinc yellow dichromate finish provides corrosion protection and grade identification
• Partially threaded shank supports shear loads in close-tolerance assemblies
• 7/16-20 UNF thread conforms to fine-thread series for improved vibration resistance
• Meets ASME B18.2.1 and SAE J429 dimensional and mechanical standards
• 5/8-inch hex key (wrench) size for standard socket or open-end tooling

Compatibility

Designed for use in standard 7/16-20 UNF tapped holes or with matching hex nuts and washers in inch-series fastener assemblies requiring Grade 8 mechanical properties.

Installation Notes

Installation should be performed by qualified tradespeople familiar with fastener torque specifications for Grade 8 hardware. Always use a calibrated torque wrench and consult the equipment manufacturer or applicable engineering standard for the required clamp load before tightening. Ensure mating threads are clean and free of debris; inspect for thread damage before assembly. Do not mix inch UNF and UNC fasteners in the same joint.