Value Collection C39058 Flange Bolt 3/4-10 Unc 4 in Grade 8

Product Description

The VALUE COLLECTION C39058 is a smooth flange bolt designed for heavy-duty fastening applications requiring a large bearing surface without a separate washer. The bolt features a 3/4-10 UNC thread size with partial threading extending 1.75 inches from the threaded end, and measures 4 inches in length under the head. The integrated smooth flange spans 1.5938 inches in diameter, distributing clamp load evenly across the joint surface. Manufactured from Grade 8 alloy steel in an uncoated finish, it meets IFI 111 and SAE J429 standards. This bolt is installed by mechanics, millwrights, and industrial maintenance technicians working on structural and mechanical assemblies.

This smooth flange bolt is suited for structural connections, heavy equipment assemblies, and industrial machinery where a built-in flange face is required to eliminate loose washers and maintain consistent clamp load. The hex drive allows installation with standard hex sockets or wrenches. Grade 8 rating makes it appropriate for high-stress joints in both stationary and mobile equipment applications. It is sold in a package quantity of 5.

Key Features

• 3/4-10 UNC thread size with 1.75 inches of partial thread length
• 4-inch length under head for use in thicker joint stacks
• Integrated smooth flange at 1.5938 inches diameter eliminates the need for a separate flat washer
• Grade 8 alloy steel construction for high tensile and proof load requirements
• Hex drive compatible with standard sockets and open-end wrenches
• Meets IFI 111 and SAE J429 fastener standards

Compatibility

Designed as an OEM-style replacement or standard-service flange bolt for industrial, structural, and heavy equipment applications requiring 3/4-10 UNC Grade 8 fasteners with an integrated flange bearing surface.

Installation Notes

Installation is performed by qualified mechanics, millwrights, or maintenance technicians. Confirm mating thread condition and hole clearance before installation. Apply fastener torque values per the equipment manufacturer specifications or applicable engineering standards for Grade 8 UNC fasteners. Do not mix fastener grades within the same joint assembly.