Value Collection R50000259 Flange Bolt 3/8-16 Unc 2-1/2 in

Product Description

The VALUE COLLECTION R50000259 is a smooth flange bolt designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. This bolt features a 3/8-16 UNC thread specification with a 2-1/2 inch length under head and 1 inch of thread engagement on the partially threaded shank. Manufactured from Grade 8 alloy steel with a phosphate and oil finish for corrosion resistance, it meets SAE J429 standards. The integrated 13/16 inch smooth flange distributes clamping load evenly without the need for a separate washer, making it a preferred choice in tight-tolerance assemblies where load bearing and alignment matter.

This flange bolt is suited for use in heavy equipment, automotive, HVAC equipment mounting, and general industrial fabrication where Grade 8 strength and UNC threading are specified. The smooth flange face is appropriate for applications requiring a clean bearing surface against softer materials or coated components. It is installed by maintenance technicians, millwrights, and mechanical contractors working to manufacturer torque specifications for 3/8-16 Grade 8 fasteners.

Key Features

• 3/8-16 UNC thread for compatibility with standard inch-series tapped holes and nuts
• Partially threaded shank with 1 inch of thread length for positive shank grip in bolted joints
• Grade 8 alloy steel construction for high tensile and proof load ratings per SAE J429
• Smooth 13/16 inch flange distributes clamping load without a separate washer
• Phosphate and oil finish provides baseline corrosion resistance and lubricity for consistent torque values
• Hex drive head for use with standard wrenches and sockets

Compatibility

Designed as a standard 3/8-16 UNC Grade 8 smooth flange bolt for use in any application specifying SAE J429 Grade 8 inch-series fasteners with a hex drive.

Installation Notes

Installation should be performed by qualified mechanical technicians following the applicable torque specifications for 3/8-16 Grade 8 fasteners as defined by the equipment manufacturer or relevant structural standards. Always de-energize and lock out equipment before replacing fasteners in live assemblies. Use calibrated torque tools to achieve consistent clamp load. Inspect mating threads and flange bearing surface for damage before assembly.