Value Collection 825100MSC Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION 825100MSC is a serrated flange bolt designed for secure fastening in structural and mechanical assemblies. It features a 5/16-18 UNC thread with a 2.5-inch length under head and is fully threaded from tip to flange. The integrated serrated flange distributes clamp load over a wider bearing surface and bites into the mating material to resist loosening under vibration. Made 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 standard hex driver or wrench. Electricians, HVAC technicians, plumbers, and general mechanical contractors use bolts of this type in panel mounting, equipment frames, and structural connections.

This bolt is suited for light- to medium-duty fastening applications in residential and commercial construction and mechanical installations. The fully threaded shank allows engagement along the entire bolt length, making it useful where thread engagement depth varies or where nuts are positioned anywhere along the shaft. The serrated flange eliminates the need for a separate lock washer in most applications. Sold individually with a minimum order quantity of 100 pieces per order.

Key Features

• Serrated flange resists loosening under vibration without a separate lock washer
• Fully threaded 5/16-18 UNC shank, 2.5 inches length under head
• Grade 5 steel construction meets SAE J429 mechanical requirements
• Zinc-plated finish provides corrosion resistance in standard indoor environments
• Flange diameter of 0.68 inches distributes clamp load over a wider bearing area
• Conforms to ASME B18.6.3 dimensional standard

Compatibility

Designed as a standard 5/16-18 UNC serrated flange bolt for use in any application requiring an ASME B18.6.3-compliant inch-series fastener with an integrated locking flange.

Installation Notes

Installation requires a hex wrench or socket sized for a standard 5/16-inch hex flange bolt head. Power down or de-energize any equipment before accessing fastener locations in electrical or mechanical enclosures. Apply torque in accordance with the fastener grade and joint material specifications per applicable codes. Do not use impact tools without verifying torque output, as overtorquing Grade 5 fasteners can cause yielding or thread damage.