Value Collection R52001217 Serrated Flange Bolt 1/2-13 Unc

Product Description

The VALUE COLLECTION R52001217 is a serrated flange bolt designed for secure fastening in applications where vibration resistance and load distribution are critical. Sized at 1/2-13 UNC with a 1-1/2 inch length under head and fully threaded shank, this bolt integrates a serrated flange that bites into the mating surface to resist loosening under dynamic loads. Manufactured from AISI C1022 Grade 2 steel with a zinc-plated finish, it offers basic corrosion protection suitable for general-purpose indoor and sheltered outdoor installations. The hex drive allows installation with standard hex tooling.

This serrated flange bolt is suited for general mechanical assembly, structural bracketing, and equipment mounting across light industrial, commercial, and trade service applications. The built-in serrated flange eliminates the need for a separate lock washer in many installations, streamlining assembly on production lines, HVAC equipment frames, electrical enclosures, and similar metal-to-metal joints. It is commonly installed by millwrights, HVAC technicians, electricians, and general maintenance trades working with standard inch-series fasteners.

Key Features

• Serrated flange provides integral vibration resistance without a separate lock washer
• Fully threaded shank along the full 1-1/2 inch length under head for maximum thread engagement
• 1/2-13 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• AISI C1022 Grade 2 steel construction for general-purpose structural fastening
• Zinc-plated finish for basic corrosion resistance in sheltered environments
• Hex drive head for installation with standard wrenches or sockets

Compatibility

Designed as a general-purpose inch-series fastener compatible with any 1/2-13 UNC tapped hole or standard hex nut in metal-to-metal assemblies requiring a serrated flange bearing surface.

Installation Notes

Install using a standard hex wrench or socket driver sized for a 1/2-inch fastener. Ensure mating surfaces are clean and free of debris so the serrated flange seats fully against the base material. Power down or de-energize any equipment before fastening work near electrical or HVAC components. Follow applicable torque guidelines from the equipment manufacturer or relevant standards such as ASME B18.2.1 for inch-series hex bolts.