Value Collection 825122MSC Serrated Flange Bolt 3/8-16 Unc

Product Description

The VALUE COLLECTION 825122MSC is a serrated flange bolt designed for general mechanical and structural fastening applications. It features a 3/8-16 UNC thread with a 1-3/4 inch length under the head and is fully threaded from the flange face to the tip. The integrated serrated flange — measuring 0.81 inches in diameter — acts as a built-in washer face and provides resistance against loosening under vibration. Manufactured from Grade 5 steel with a zinc-plated finish, this bolt meets ASME B18.6.3 and SAE J429 standards. It is driven with a hex tool and suits a wide range of industrial, HVAC, and mechanical assembly fastening tasks.

This bolt is well suited for residential and light commercial mechanical assemblies where vibration resistance is a priority. Common applications include HVAC equipment mounting, sheet metal assemblies, electrical enclosures, and general fabrication work. The serrated flange eliminates the need for a separate lock washer, simplifying the installation stack and reducing component count. Maintenance technicians, HVAC installers, and general mechanical contractors regularly use this fastener type in both new construction and service work.

Key Features

• Serrated flange diameter of 0.81 inches provides vibration-resistant clamping without a separate lock washer
• Fully threaded 3/8-16 UNC shank over 1-3/4 inch length under head for maximum thread engagement
• Grade 5 steel construction meets SAE J429 mechanical property requirements
• Zinc-plated finish provides corrosion resistance in typical indoor service environments
• Hex drive head compatible with standard socket and wrench tooling
• Manufactured to ASME B18.6.3 dimensional standards

Compatibility

Designed as a standard 3/8-16 UNC serrated flange bolt for use in any application requiring a Grade 5 fully threaded hex flange fastener per ASME B18.6.3 and SAE J429.

Installation Notes

Installation is performed with standard hex sockets or wrenches sized for a 3/8-16 UNC bolt head. Ensure mating threads are clean and free of debris before installation. Do not exceed the torque capacity appropriate for Grade 5 hardware in the mating material. The serrated flange is intended for use against metal bearing surfaces and should not be used against soft or coated surfaces where the serrations may cause damage.