Value Collection 825164MSC Serrated Flange Bolt 5/8-11 Unc

Product Description

The VALUE COLLECTION 825164MSC is a fully threaded serrated flange bolt designed for secure mechanical fastening in structural and equipment assembly applications. The serrated flange distributes clamping load across a wider bearing surface and bites into the mating material to resist loosening under vibration. Manufactured from Grade 5 steel with a zinc-plated finish for basic corrosion resistance, this bolt meets ASME B18.6.3 and SAE J429 standards. The 5/8-11 UNC thread and 1-1/2 inch length under head make it suitable for a wide range of mid-load fastening tasks. Licensed trades and maintenance professionals working on mechanical equipment, HVAC frames, or structural assemblies will find this a reliable standard hardware choice.

This bolt is used in general industrial, commercial, and mechanical assembly applications where a flanged fastener is preferred over a standard hex bolt and separate washer. The serrated flange is particularly effective in assemblies subject to vibration or dynamic loads, where thread locking or loosening is a concern. It installs with a standard hex wrench or socket and is sized for use wherever 5/8-11 UNC threaded holes or nuts are specified.

Key Features

• Serrated flange bearing surface resists loosening under vibration without a separate washer
• Fully threaded 5/8-11 UNC shank for maximum thread engagement across the full 1-1/2 inch length
• Grade 5 steel construction meets SAE J429 mechanical property requirements
• Zinc-plated finish provides basic corrosion protection for indoor and light-duty outdoor use
• Flange diameter of 1.33 inches increases load distribution over the bearing surface
• Conforms to ASME B18.6.3 dimensional standards for consistent fit and interchangeability

Compatibility

Designed as a standard UNC fastener for use in any application specifying a 5/8-11 serrated flange bolt per ASME B18.6.3 and SAE J429.

Installation Notes

Installation is performed with a standard hex socket or open-end wrench sized for the 5/8-11 hex head. Power down or de-energize any equipment before replacing fasteners in electrical or mechanical enclosures. Do not exceed the torque rating specified in the equipment manufacturer's documentation for Grade 5 fasteners of this thread size. Inspect mating threads for damage or contamination before installation.