Value Collection R52001170 Serrated Flange Bolt 3/8-16 Unc

Product Description

The VALUE COLLECTION R52001170 is a serrated flange bolt designed for general-purpose fastening applications requiring vibration resistance and a built-in load-distributing flange. Sized at 3/8-16 UNC with a 1-1/4 inch length under head, this bolt is fully threaded and manufactured from Grade 2 AISI C1022 steel with a zinc-plated finish for basic corrosion resistance. The serrated underside of the flange bites into the mating surface to resist loosening under dynamic loads, eliminating the need for a separate lock washer in most applications. Licensed tradespeople and maintenance technicians in mechanical, electrical, and structural assembly work use this fastener type across a wide range of industries.

This bolt is suited for light-duty to medium-duty fastening tasks in residential and commercial mechanical systems, equipment frames, junction boxes, HVAC equipment panels, and general fabrication. The 3/8-16 UNC thread form is one of the most common inch-series coarse thread standards, making this bolt a frequent choice for service replacements and OEM-style assembly work. It is sold in minimum order quantities of 25 units, making it appropriate for shop stock, service van inventory, or production-line use.

Key Features

• Serrated flange integrates a locking feature and load-spreading washer face in one piece, reducing hardware count
• Fully threaded 3/8-16 UNC shank allows maximum thread engagement across varying material thicknesses
• Grade 2 AISI C1022 steel construction meets standard mechanical property requirements for general fastening
• Zinc-plated finish provides basic corrosion protection suitable for indoor and sheltered outdoor environments
• Hex drive compatible with standard 9/16 inch wrenches and sockets for quick installation and removal
• Flange diameter of 0.771 to 0.793 inches provides consistent bearing surface without a separate washer

Compatibility

Designed as a standard inch-series serrated flange bolt for use in any application requiring a 3/8-16 UNC threaded fastener with an integrated serrated flange bearing surface.

Installation Notes

Installation is performed with a standard 9/16 inch hex wrench or socket driver. Ensure mating threads are clean and free of debris before installation to achieve proper torque and seating of the serrated flange. Do not use with soft or coated mating surfaces where the serrations may cause unacceptable surface damage. Follow applicable mechanical or structural codes for fastener torque requirements based on joint design and material.