Value Collection 822532MSC Flange Bolt 1/4-20 Unc 2-1/4 in Grade 8

Product Description

The VALUE COLLECTION 822532MSC is a smooth flange bolt designed for industrial and mechanical fastening applications requiring a controlled clamping surface and precise load distribution. Built to a 1/4-20 UNC thread specification with a 2-1/4 inch length under head, this bolt is partially threaded with 3/4 inch of thread engagement. The integrated smooth flange — measuring 9/16 inch in diameter — eliminates the need for a separate washer by spreading the clamp load across a wider bearing surface. Manufactured from Grade 8 alloy steel with a phosphate and oil finish, it meets SAE J429 standards and is suited for high-strength fastening where precise torque control is critical. Installed by mechanical assemblers, maintenance technicians, and millwrights.

This bolt is a standard inch-system fastener well-suited for structural assembly, equipment mounting, and general mechanical fastening where a smooth flange bearing face is specified. The partial threading keeps the shank unthreaded along most of its length, which is advantageous in applications requiring shear resistance or precise hole alignment. The phosphate and oil finish provides moderate corrosion resistance and aids in lubricated assembly. Sold individually with a minimum order quantity of 100 pieces.

Key Features

• 1/4-20 UNC thread form with 3/4 inch thread length for controlled engagement depth
• Smooth flange eliminates the need for a separate flat washer and distributes clamp load evenly
• Grade 8 alloy steel construction for high tensile and proof load ratings per SAE J429
• Partially threaded shank provides improved shear resistance in fitted-hole applications
• Phosphate and oil finish offers moderate corrosion protection and promotes consistent torque-to-tension
• Hex drive for installation with standard hex wrenches or sockets

Compatibility

Designed as a standard 1/4-20 UNC inch-series smooth flange bolt for use in general mechanical and structural fastening applications where SAE J429 Grade 8 fasteners are specified.

Installation Notes

Installation is performed with a standard hex wrench or socket driver sized to the hex head. Always verify that the mating tapped hole or nut meets Grade 8 or equivalent load-bearing requirements before torquing. Apply torque values in accordance with the applicable engineering specification or fastener torque standard for 1/4-20 Grade 8 fasteners — do not exceed the rated proof load. Ensure mating surfaces are clean and free of debris before seating the flange.