Value Collection 3724MWW Serrated Flange Bolt 3/8-16 Unc

Product Description

The VALUE COLLECTION 3724MWW is a serrated flange bolt designed for secure fastening in structural and mechanical assemblies. It features a 3/8-16 UNC thread with a 1-1/2 inch length under head and is fully threaded along its entire shank. The integrated serrated flange distributes clamping load and bites into the mating surface to resist loosening under vibration. Manufactured from AISI C1022 Grade 2 steel with a zinc-plated finish, it provides corrosion resistance suitable for general-purpose indoor and light-duty outdoor applications. Trade professionals and assembly technicians use this fastener where a separate washer would be impractical or where anti-rotation resistance is needed at the bearing surface.

This serrated flange bolt is suited for residential and light commercial mechanical assemblies, equipment mounting, and general fabrication work. The 3/8-16 UNC thread pattern is a widely used coarse-thread standard compatible with standard tapped holes and nuts of the same designation. The flange diameter ranges from 0.771 to 0.793 inches, providing a consistent bearing surface without a separate washer. It is appropriate for steel-to-steel, steel-to-bracket, and similar structural connections where vibration resistance is a priority.

Key Features

• 3/8-16 UNC coarse thread for broad compatibility with standard tapped holes and hex nuts
• Fully threaded shank allows maximum thread engagement across the full 1-1/2 inch length under head
• Serrated flange bites into mating surface to resist loosening under vibration without a separate lock washer
• Flange diameter of 0.771 to 0.793 inches distributes clamping load over a wider bearing area
• AISI C1022 Grade 2 steel construction balances strength and machinability for general-purpose fastening
• Zinc-plated finish provides corrosion resistance for indoor and light-duty environmental exposure

Compatibility

Designed as a standard 3/8-16 UNC serrated flange bolt for general mechanical and structural fastening applications requiring a coarse-thread hex-drive fastener with an integrated flange.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson using a hex wrench or socket of the appropriate drive size. Always ensure the mating thread is clean and free of debris before installation. Do not exceed the rated load for Grade 2 fasteners, and follow applicable mechanical or structural codes for the specific application. Inspect the serrated flange contact surface for proper seating after final torque.