Value Collection 825336MSC Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION 825336MSC is a serrated flange bolt designed for high-strength fastening applications requiring a built-in clamping surface and vibration resistance. Manufactured from 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 runs the full 1-1/2 inch length under the head, and the integrated 0.68-inch serrated flange distributes load across the bearing surface while biting into the mating material to resist loosening. It is installed using a standard hex drive tool. Maintenance technicians, millwrights, and trade professionals across mechanical, HVAC, electrical, and plumbing disciplines use this fastener wherever a captive washer-style bolt is required.

This serrated flange bolt is suited for general mechanical assembly, equipment mounting, bracket attachment, and structural fastening in both residential and light commercial applications. The fully threaded shank allows engagement along the entire length under the head, making it practical in shallow-clearance joint conditions. Its zinc plating provides moderate corrosion resistance for indoor and protected outdoor environments. This item is sold individually but is ordered in multiples of 100.

Key Features

• Fully threaded 5/16-18 UNC shank, 1-1/2 inches length under head
• Integrated 0.68-inch serrated flange acts as a built-in washer and lock surface
• Grade 8 steel construction for high tensile and proof load strength
• Zinc-plated finish for corrosion resistance in typical indoor environments
• Hex drive for installation with standard socket or wrench tooling
• Meets ASME B18.6.3 and SAE J429 fastener standards

Compatibility

Designed as a standard 5/16-18 UNC serrated flange bolt for use in any application requiring Grade 8 strength and a flanged bearing surface in that thread size and length.

Installation Notes

This bolt is installed by licensed tradespeople and maintenance professionals using standard hex socket or open-end wrench tooling. Always ensure the mating threads are clean and free of debris before installation. Power down or de-energize any equipment before fastening components in electrical or mechanical assemblies. Do not exceed the rated proof load for Grade 8 fasteners as specified by SAE J429.