Value Collection 825112MSC Serrated Flange Bolt 3/8-16 Unc

Product Description

The VALUE COLLECTION 825112MSC is a serrated flange bolt designed for secure fastening in applications where a built-in locking surface is required. The serrated flange distributes clamping load across a wider bearing surface while the serrations bite into the mating material to resist loosening under vibration. Manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance, this bolt carries a 3/8-16 UNC thread and measures 0.5 inches in length under the head with full threading from tip to flange. It is driven with a standard hex drive. Tradespeople and maintenance professionals working on mechanical assemblies, equipment frames, and structural brackets reach for this fastener when vibration resistance is a priority.

This bolt is suited for general industrial, mechanical, and maintenance applications requiring an inch-series UNC fastener. Its fully threaded shank makes it appropriate for thin-material clamping where thread engagement along the full grip length is needed. The zinc plating provides moderate corrosion resistance for indoor and light-duty outdoor environments. Typical users include millwrights, maintenance technicians, and contractors assembling steel-frame structures, machinery guards, brackets, and enclosures.

Key Features

• Serrated flange integrates a locking washer face to resist vibration-induced loosening without a separate washer
• Grade 5 steel construction meets SAE J429 mechanical property requirements for medium-strength fasteners
• Fully threaded 3/8-16 UNC shank allows maximum thread engagement in thin-material applications
• Zinc-plated finish provides corrosion resistance for general indoor and light-duty service environments
• Hex drive compatible with standard hex sockets and wrenches
• Conforms to ASME B18.6.3 and SAE J429 dimensional and strength standards

Compatibility

Designed as a standard inch-series UNC serrated flange bolt for use in any application requiring a 3/8-16 thread and 0.5-inch grip length under the head.

Installation Notes

Installation is performed with a standard hex socket or open-end wrench sized for 3/8-inch hex flange bolts. Ensure mating threads are clean and free of debris before installation. Do not exceed the torque rating appropriate for Grade 5 fasteners at this thread size as specified by the applicable mechanical or structural code. The serrated flange face should seat directly against the workpiece surface — do not add a flat washer between the flange and mating surface, as this defeats the anti-loosening serrations.