Value Collection 825346MSC Serrated Flange Bolt 3/8-16 Unc

Product Description

The VALUE COLLECTION 825346MSC is a serrated flange bolt designed for high-strength fastening in structural and mechanical assemblies. Built to Grade 8 steel with a zinc-plated finish, it delivers high tensile strength and corrosion resistance in demanding applications. The integrated serrated flange distributes clamping load over a wider surface area and bites into the mating material to resist loosening under vibration. Thread size is 3/8-16 UNC with a 3/4 inch length under head, fully threaded from tip to flange. The flange diameter measures 0.81 inches. Drive type is hex. This bolt conforms to ASME B18.6.3 and SAE J429 standards.

This bolt is suited for general industrial, automotive, and equipment assembly applications where a standard hex bolt with a built-in flange washer is preferred. The serrated underside of the flange locks against the mating surface without requiring a separate lock washer, making it practical in production and field repair scenarios. Typical users include assembly technicians, maintenance mechanics, and fabricators working with steel and heavy equipment structures.

Key Features

• Grade 8 steel construction for high tensile and shear strength
• Serrated flange resists loosening under vibration without a separate lock washer
• Zinc-plated finish provides corrosion resistance in standard indoor and light outdoor environments
• Fully threaded 3/8-16 UNC shank, 3/4 inch length under head
• Flange diameter of 0.81 inches spreads clamping load over a larger bearing area
• Conforms to ASME B18.6.3 and SAE J429 standards

Compatibility

Designed as a standard 3/8-16 UNC serrated flange bolt suitable for use in any application requiring a Grade 8 hex flange fastener conforming to ASME B18.6.3 and SAE J429.

Installation Notes

Installation is performed with a standard hex wrench or socket. Ensure mating threads are clean and free of debris before driving the bolt. Do not exceed the torque rating appropriate for Grade 8, 3/8-16 UNC fasteners as specified in the applicable engineering reference or equipment service manual. The serrated flange requires firm, flat seating against the mating surface to function correctly — avoid use on soft or coated surfaces where serrations may not engage.