Value Collection 99786 Hex Nut 5/8-11 Grade 8 Steel

Product Description

The VALUE COLLECTION 99786 is a 5/8-11 hex nut manufactured from Grade 8 steel with a black oxide finish. Grade 8 steel provides high tensile strength suited for heavy-duty bolted assemblies in demanding mechanical, structural, and industrial applications. The black oxide coating offers mild corrosion resistance and reduces light reflection on exposed fasteners. This nut uses a right-hand thread pattern and conforms to UNC thread standards. At 15/16 inches across the flats and 35/64 inches in height, it is sized for standard 5/8-inch fastener hardware. Installation is handled by mechanics, millwrights, pipefitters, and general contractors working with high-strength bolted connections.

This hex nut is used in applications requiring high-strength fastening, including equipment mounting, structural steel connections, and heavy machinery assembly. The 5/8-11 UNC thread size is common in industrial and commercial construction environments. The Grade 8 rating makes it appropriate where joint integrity and clamping force are critical. The black oxide finish suits indoor and sheltered outdoor installations where appearance and mild surface protection are factors. This nut is sold individually but requires a minimum order quantity of 50 pieces per order.

Key Features

• Grade 8 steel construction for high tensile strength in demanding bolted assemblies
• Black oxide finish provides mild corrosion resistance and low-reflectance surface
• 5/8-11 UNC right-hand thread for compatibility with standard 5/8-inch threaded fasteners
• 15/16 inches across flats for use with standard hex wrenches and sockets
• 35/64 inches height — compact profile for tight clearance applications

Compatibility

Designed as a standard UNC hex nut for use with 5/8-11 threaded bolts and studs in Grade 8 or equivalent high-strength fastener assemblies.

Installation Notes

Installation is performed by qualified mechanics, millwrights, or contractors familiar with high-strength fastener practices. Always verify thread engagement and confirm mating bolt grade is compatible with Grade 8 hardware before torquing. Use a calibrated torque wrench and follow the applicable fastener torque specification for the joint design. Inspect threads for damage before installation and discard any nut that does not run freely by hand.