Value Collection C39065 Flange Bolt 5/8-18 Unf 2 in Grade 8

Product Description

The VALUE COLLECTION C39065 is a partially threaded smooth flange bolt designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. Built from Grade 8 alloy steel in an uncoated finish, this bolt meets IFI 111 and SAE J429 standards, making it appropriate for demanding load-bearing connections. The 5/8-18 UNF thread provides fine-thread engagement suited to applications requiring precise clamping force and vibration resistance. The integrated smooth flange distributes load across a wider bearing surface, eliminating the need for a separate washer in many installations. Hex drive allows standard socket or wrench installation. This fastener is sold individually per package with a minimum order quantity of 10 pieces.

This flange bolt is used in general industrial maintenance, equipment assembly, and fabrication work where fine-thread fasteners are specified. The 2-inch length under head and 1-21/64-inch flange diameter make it suitable for medium-thickness joint stacks in machinery frames, brackets, and structural steel connections. Machinists, millwrights, maintenance technicians, and fabricators commonly install this bolt type. Its Grade 8 rating suits applications subject to high tensile and shear loads.

Key Features

• 5/8-18 UNF fine thread for precise torque control and vibration resistance
• Grade 8 alloy steel construction for high tensile strength in demanding assemblies
• Smooth flange distributes clamping load without a separate washer
• Partially threaded shank provides a bearing surface for shear applications
• Hex drive compatible with standard sockets and open-end wrenches
• Meets IFI 111 and SAE J429 fastener standards

Compatibility

Designed as a standard 5/8-18 UNF smooth flange bolt suitable for use in any application specifying a Grade 8 partially threaded hex flange fastener per IFI 111 or SAE J429.

Installation Notes

Installation should be performed by qualified mechanical or maintenance personnel familiar with fastener torque specifications for Grade 8 hardware. Always verify joint stack thickness against the 2-inch length under head before installation to ensure adequate thread engagement. Apply torque per the applicable engineering specification or fastener torque chart for 5/8-18 UNF Grade 8 fasteners. Inspect threads for damage and ensure mating threads are clean and free of debris before assembly.