Value Collection C39067-5 Smooth Flange Bolt 3/4-16 Unf

Product Description

The VALUE COLLECTION C39067-5 is a smooth flange bolt designed for applications requiring a wide bearing surface without a separate washer. Sized at 3/4-16 UNF with a 2-1/2 inch length under head, this partially threaded fastener is manufactured from Grade 8 alloy steel for high-strength clamping in demanding mechanical assemblies. The integrated smooth flange measures 1-19/32 inches (1.5938 inches) in diameter, distributing clamp load evenly across the joint surface. It ships uncoated and meets IFI 111 and SAE J429 standards. Machinists, millwrights, and industrial maintenance technicians commonly install this type of fastener in heavy equipment, hydraulic assemblies, and structural connections where fine-thread engagement and controlled preload are required.

This flange bolt is suited for industrial and commercial maintenance applications where a 3/4-16 UNF fine-thread fastener is specified. The partial thread shank provides a clean grip length in through-bolt applications and reduces stress concentration in the unthreaded zone. Grade 8 alloy steel construction makes it appropriate for high-load, high-vibration environments such as equipment frames, press assemblies, and powertrain mounting. Sold in a minimum order quantity of 5 pieces, it is a practical replenishment item for maintenance cribs and fastener inventories.

Key Features

• 3/4-16 UNF fine thread for precise torque control and reduced loosening under vibration
• Grade 8 alloy steel construction for high tensile and proof load capacity
• Integrated smooth flange eliminates the need for a separate flat washer
• 1-19/32 inch (1.5938 inch) flange diameter for broad load distribution
• Partially threaded shank preserves grip length integrity in through-bolt installations
• Meets IFI 111 and SAE J429 standards for dimensional and mechanical compliance

Compatibility

Designed as an OEM-style replacement or stock fastener for any assembly specifying a 3/4-16 UNF smooth flange bolt with a 2-1/2 inch length under head and Grade 8 alloy steel material grade.

Installation Notes

Installation is performed by qualified millwrights, mechanics, or maintenance technicians using a standard hex drive tool sized for a 3/4 inch hex head. Always confirm the mating thread is clean, undamaged, and matches the UNF thread standard before installation. Torque to the value specified in the equipment manufacturer's service documentation for Grade 8 fasteners at this diameter. Do not reuse fasteners that show signs of thread damage, corrosion, or deformation.