Value Collection 822217MSC Flange Bolt 5/8-18 Unf 1-1/2in Grade 8

Product Description

The VALUE COLLECTION 822217MSC is a smooth flange bolt designed for high-strength fastening applications requiring a controlled bearing surface without a separate washer. Manufactured from Grade 8 alloy steel with a phosphate and oil finish for corrosion resistance, this bolt features a 5/8-18 UNF fully threaded shank with 1-1/2 inches of thread length under the head. The integrated smooth flange measures 1-21/64 inches in diameter, distributing clamp load across a wider surface area. It is driven by a standard hex drive and meets IFI 111 and SAE J429 standards. Mechanics, millwrights, and maintenance technicians commonly install this fastener in structural, automotive, and industrial assemblies.

This flange bolt is suited for bolted joint applications where a smooth flange face is required to protect mating surfaces or provide an even seating surface without serrations. Common installation scenarios include suspension assemblies, machinery frames, brackets, and heavy-duty structural connections. The 5/8-18 UNF fine thread pitch provides greater thread engagement and finer torque control compared to coarse thread equivalents, making it well-suited for precision-fit or vibration-prone joints. The phosphate and oil finish adds a baseline level of corrosion protection appropriate for indoor and light-duty outdoor applications.

Key Features

• Grade 8 alloy steel construction for high tensile strength in demanding bolted joints
• Smooth flange face distributes clamping load without marring mating surfaces
• 5/8-18 UNF fully threaded shank allows engagement along the full thread length
• Integrated flange eliminates the need for a separate flat washer in many applications
• Phosphate and oil finish provides baseline corrosion and galling resistance
• Meets IFI 111 and SAE J429 fastener standards for dimensional and mechanical conformance

Compatibility

Designed as a standard 5/8-18 UNF smooth flange bolt for use in any application calling for a Grade 8 alloy steel flange fastener conforming to IFI 111 and SAE J429 specifications.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician familiar with proper fastener torque procedures for Grade 8 hardware. Always verify thread engagement and mating thread condition before installation. Do not mix inch and metric fasteners or substitute a lower-grade bolt in Grade 8 applications. Follow applicable industry torque tables and joint specifications for the specific assembly.