Value Collection KP24733 Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION KP24733 is a serrated flange bolt designed for secure, vibration-resistant fastening in mechanical and structural assemblies. It features a 5/16-18 UNC fully threaded shank with a 3/4-inch length under the head and a 0.68-inch serrated flange diameter. The serrations on the flange bite into the mating surface during installation, distributing load and resisting loosening without a separate washer. Made from Grade 5 steel with a zinc yellow dichromate finish, it meets ASME B18.6.3 and SAE J429 standards. Sold in a package of 50.

This bolt is suited for general mechanical assembly, HVAC equipment panels, electrical enclosures, light structural brackets, and equipment frames where vibration or movement is a concern. The hex drive works with standard wrenches and sockets, making it compatible with typical shop and field toolkits. The zinc yellow dichromate finish provides moderate corrosion resistance for indoor and sheltered outdoor applications.

Key Features

• 5/16-18 UNC fully threaded shank, 3/4-inch length under head
• 0.68-inch serrated flange distributes clamp load and eliminates the need for a separate washer
• Serrations resist loosening under vibration
• Grade 5 steel construction meets SAE J429 mechanical requirements
• Zinc yellow dichromate finish for moderate corrosion resistance
• Hex drive compatible with standard wrenches and power tools
• Packaged in quantities of 50 per pack

Compatibility

Designed as a standard 5/16-18 UNC serrated flange bolt per ASME B18.6.3, suitable for use in any application requiring a fully threaded hex flange fastener in that thread size and length.

Installation Notes

Installation is performed with a standard hex wrench or socket in the appropriate drive size. Ensure the mating thread is clean and free of debris before driving the fastener. The serrated flange requires firm seating against the workpiece surface to engage properly, so do not install over a flat washer, as this will defeat the locking serrations. Follow applicable mechanical codes and torque guidelines for Grade 5 fasteners in the relevant application.