Value Collection R52001069 Serrated Flange Bolt 1/4-20 Unc

Product Description

The VALUE COLLECTION R52001069 is a serrated flange bolt designed for secure fastening in general mechanical and structural assembly applications. It features a 1/4-20 UNC thread profile with a 2-inch length under head and is fully threaded from the bearing surface to the tip, maximizing thread engagement across the full grip length. The integrated serrated flange distributes clamping load and bites into the mating surface to resist loosening under vibration. The bolt is manufactured from AISI C1022 steel to a Grade 2 material standard and finished with a zinc plating for basic corrosion resistance.

This bolt suits residential and light commercial assembly work where a vibration-resistant fastener is needed without a separate lock washer. Common applications include HVAC equipment mounting brackets, electrical enclosure assembly, sheet metal fabrication, and general mechanical sub-assemblies. The serrated flange eliminates a secondary component, reducing parts count in repetitive production or field service work. Tradespeople across HVAC, electrical, and plumbing disciplines will encounter this fastener in equipment panels and mounting frames.

Key Features

• Serrated flange bearing surface resists loosening under vibration without a separate lock washer
• Fully threaded 2-inch shank for maximum thread engagement in thin or stacked material
• 1/4-20 UNC thread standard for compatibility with standard inch-system tapped holes and nuts
• Flange diameter of 0.513 to 0.531 inches provides a consistent clamping footprint
• AISI C1022 steel construction at Grade 2 for reliable general-purpose tensile strength
• Zinc plating delivers basic corrosion resistance in dry or moderately humid environments

Compatibility

Designed as a standard 1/4-20 UNC inch-system fastener suitable for use in any tapped hole or with any hex nut conforming to the UNC thread standard in that size.

Installation Notes

Installation is performed using a standard hex wrench or hex socket driver sized to the bolt head. Power down or de-energize any equipment before fastening or removing hardware in electrical or HVAC panels. Do not use an impact driver at full torque on Grade 2 fasteners without verified torque requirements for the assembly. Inspect the mating surface for proper thread engagement before applying final clamping load.