Value Collection 825092MSC Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION 825092MSC is a serrated flange bolt designed for secure fastening in applications where a built-in locking face is required. The serrated flange distributes clamping load across a wider surface area while the teeth bite into the mating material to resist loosening from vibration. This bolt is fully threaded along its 1-inch length under head, features a 5/16-18 UNC coarse thread, and is finished in zinc plating for basic corrosion resistance. It is driven with a standard hex tool. Machinists, maintenance technicians, and assembly mechanics working in general industrial, automotive, or structural applications are the typical installers.

This bolt suits residential and light commercial assembly work where a self-locking flange fastener replaces a separate bolt-and-washer combination. The fully threaded shank makes it effective in short-grip applications and thin-material assemblies. It conforms to ASME B18.6.3 and SAE J429 standards, placing it in the Grade 5 medium-strength class appropriate for moderate-load structural and mechanical connections. Sold individually with a minimum order quantity of 100 pieces.

Key Features

• Serrated flange face resists loosening under vibration without a separate lock washer
• Fully threaded 1-inch length under head maximizes thread engagement in thin or short-stack assemblies
• Grade 5 steel construction meets SAE J429 medium-strength requirements
• Zinc-plated finish provides baseline corrosion protection for indoor and light-duty outdoor use
• 0.68-inch flange diameter distributes clamping load over a broader bearing surface
• Hex drive compatible with standard wrenches and sockets

Compatibility

Designed as a standard 5/16-18 UNC serrated flange bolt conforming to ASME B18.6.3 and SAE J429, suitable for use in any application requiring a Grade 5 fully threaded hex flange fastener in that thread size.

Installation Notes

Install using a standard hex wrench or socket driver sized for a 5/16-inch hex flange bolt. Ensure mating threads are clean and free of debris before fastening. Do not exceed the rated proof load for Grade 5 fasteners as defined by SAE J429. The serrated flange requires a flat, clean bearing surface to engage properly — avoid installing against painted or coated surfaces where the serrations cannot seat.