Value Collection 824422MSC Serrated Flange Bolt 1/2-13 Unc

Product Description

The VALUE COLLECTION 824422MSC is a serrated flange bolt designed for applications requiring a secure, vibration-resistant fastening solution. With a 1/2-13 UNC thread size and a 2-1/4 inch length under head, this bolt is fully threaded from tip to flange. The integrated serrated flange has a 1.07 inch diameter, distributing clamp load across a wider bearing surface while the serrations bite into the mating material to resist loosening. Manufactured from Grade 5 steel with a zinc-plated finish, it meets ASME B18.6.3 and SAE J429 standards. Installation requires a standard hex drive tool. Typical installers include mechanical contractors, millwrights, and maintenance technicians working across industrial and commercial applications.

This serrated flange bolt is suited for structural and mechanical assemblies where a separate washer is impractical or where vibration loads are a concern. The fully threaded shank allows engagement along the entire fastener length, making it useful in thin-material applications or where thread engagement depth varies. Typical use cases include equipment mounting, bracket fabrication, HVAC equipment frames, and general mechanical assembly in both shop and field environments.

Key Features

• 1/2-13 UNC thread size, fully threaded for maximum thread engagement flexibility
• 2-1/4 inch length under head for versatile fastening depth
• Integrated 1.07 inch serrated flange eliminates the need for a separate washer and resists loosening under vibration
• Grade 5 steel construction meets SAE J429 mechanical property requirements
• Zinc-plated finish provides corrosion resistance in standard indoor and light-exposure environments
• Hex drive compatible with standard wrenches and sockets
• Conforms to ASME B18.6.3 dimensional standards

Compatibility

Designed as a standard 1/2-13 UNC serrated flange bolt for use in any application requiring ASME B18.6.3 and SAE J429 compliant fasteners with an integrated flange bearing surface.

Installation Notes

Install using a standard hex wrench or socket driver sized for a 1/2-13 UNC flange bolt head. Ensure mating threads are clean and free of debris before installation. Do not exceed recommended torque values for Grade 5 fasteners as published in SAE J429 specifications. Zinc-plated finish is not rated for prolonged immersion or highly corrosive environments — select a stainless or coated alternative for those conditions.