Value Collection C39038 Smooth Flange Bolt 1/2-13 Unc

Product Description

The VALUE COLLECTION C39038 is a smooth flange bolt designed for structural and mechanical fastening applications where a wider bearing surface is needed without a separate washer. Sized at 1/2-13 UNC with a 2-1/4 inch length under head, this bolt is partially threaded with a 1-1/4 inch thread length. It is manufactured from Grade 8 alloy steel, making it suitable for high-strength fastening tasks. The smooth flange measures 1-5/64 inches (1.0781 inches) in diameter and distributes clamping load evenly across the joint surface. The bolt arrives uncoated and conforms to IFI 111 and SAE J429 standards. Hex drive allows installation with standard wrenches or sockets.

This bolt is commonly used in industrial, agricultural, and heavy equipment assembly where Grade 8 strength is required and a flanged bearing surface improves load distribution. Typical applications include machinery frames, structural steel connections, and equipment mounting brackets. The partially threaded shank provides a strong grip in the unthreaded region, which is useful in joint configurations where shear loading is a factor. Sold in a package quantity of 10 per order.

Key Features

• 1/2-13 UNC thread size with 1-1/4 inch thread length, partially threaded shank
• 2-1/4 inch length under head for deep fastening applications
• Grade 8 alloy steel construction for high-strength performance
• Smooth flange diameter of 1-5/64 inches (1.0781 inches) for integrated bearing surface
• Hex drive compatible with standard 3/4 inch wrenches and sockets
• Meets IFI 111 and SAE J429 fastener standards

Compatibility

Designed as a standard 1/2-13 UNC hex flange bolt suitable for use in any application requiring Grade 8 alloy steel strength and IFI 111 or SAE J429 compliant hardware.

Installation Notes

Installation is performed with standard hand tools or power tools fitted with a 3/4 inch hex socket. Ensure mating threads are clean and free of debris before installation. Torque to the value specified in the relevant engineering or equipment documentation for Grade 8, 1/2-13 UNC fasteners. Do not reuse bolts that have been subjected to proof load or impact loading without inspection.