Value Collection 824161MSC Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION 824161MSC is a serrated flange bolt designed for secure fastening in structural and mechanical assemblies. The integrated serrated flange distributes clamping load across a wider bearing surface and bites into the mating material to resist loosening under vibration. This bolt measures 3 inches in length under head and is fully threaded on a 5/16-18 UNC coarse thread. It is manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance. Electricians, HVAC technicians, plumbers, and general mechanical contractors reach for this type of fastener when a separate washer would be impractical or when vibration resistance is a priority.

This fastener is suited for light-to-medium structural connections in residential and commercial mechanical systems. Typical applications include mounting brackets, equipment panels, ductwork supports, electrical enclosures, and machinery frames where UNC coarse thread engagement and vibration-resistant clamping are required. The fully threaded shank provides maximum thread engagement across the full grip range, making it adaptable to varying material stack-up thicknesses.

Key Features

• Serrated flange resists loosening under vibration without a separate lock washer
• Fully threaded 5/16-18 UNC shank for maximum thread engagement
• 3 inches length under head suits a range of material thicknesses
• 0.68 inch flange diameter distributes clamping load over a wider bearing area
• Grade 5 steel construction meets SAE J429 mechanical property requirements
• Zinc-plated finish provides corrosion resistance in typical indoor environments
• Conforms to ASME B18.6.3 dimensional standards for hex head fasteners

Compatibility

Designed as a standard 5/16-18 UNC serrated flange bolt for use in any application requiring ASME B18.6.3 and SAE J429 compliant Grade 5 fasteners with a hex drive.

Installation Notes

Install with a standard hex socket or open-end wrench sized for the hex head. Ensure mating threads are clean and free of debris before driving. Power down or de-energize any equipment before accessing fastener locations on live mechanical or electrical assemblies. Torque to the project specification for 5/16-18 Grade 5 fasteners as defined by the applicable engineering or code requirement.