Value Collection 825332MSC Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION 825332MSC is a fully threaded serrated flange bolt designed for high-strength fastening applications in metal fabrication, machinery assembly, and structural installations. The integrated serrated flange distributes clamping load across a wider bearing surface while the serrations resist loosening under vibration — eliminating the need for a separate washer in many installations. Built to Grade 8 steel with a zinc-plated finish, this bolt meets ASME B18.6.3 and SAE J429 standards. The 5/16-18 UNC thread and 1-inch length under head make it a compact, high-torque option for tight assemblies requiring reliable clamp retention.

This bolt is suited for general industrial, automotive, and mechanical fastening where vibration resistance and load distribution are priorities. The hex drive allows installation with standard hand tools or power drivers. It is commonly used by millwrights, maintenance mechanics, equipment assemblers, and fabricators working with steel or metal components. The fully threaded shank provides maximum thread engagement across the full 1-inch grip length, making it effective in through-hole and tapped applications alike.

Key Features

• Serrated flange provides vibration resistance without a separate lock washer
• Grade 8 steel construction for high tensile and proof load strength
• Zinc-plated finish offers corrosion protection in typical indoor environments
• Fully threaded along the 1-inch length under head for maximum thread engagement
• Hex drive compatible with standard 1/2-inch drive sockets and wrenches
• Meets ASME B18.6.3 and SAE J429 dimensional and mechanical standards

Compatibility

Designed as a standard 5/16-18 UNC serrated flange bolt for use in any application requiring a Grade 8 hex flange fastener with a 1-inch length under head and fully threaded shank.

Installation Notes

Installation is performed with a standard hex socket or open-end wrench sized for a 5/16-18 UNC flange bolt head. Power down and de-energize any equipment before replacing fasteners on live machinery. Do not exceed the rated torque range for Grade 8 fasteners of this thread size as published in applicable fastener standards. Inspect the mating threads and seating surface for damage before installation to ensure proper clamp load.