Value Collection C39039 Flange Bolt 1/2-13 Unc 2-1/2 in

Product Description

The VALUE COLLECTION C39039 is a smooth flange bolt designed for heavy-duty fastening applications requiring a wide, integrated bearing surface. With a 1/2-13 UNC thread and a 2-1/2-inch length under head, this partially threaded fastener provides a secure grip across a range of clamping thicknesses. Manufactured from Grade 8 alloy steel in an uncoated bright finish, it delivers high tensile strength suitable for demanding mechanical and structural assemblies. The 1-5/64-inch smooth flange distributes clamp load evenly without requiring a separate washer, reducing installation steps and hardware count.

This flange bolt is suited for industrial, mechanical, and structural applications where a Grade 8 fastener is specified. Typical uses include equipment mounting, fabricated frames, and machinery assembly where a smooth, non-serrated flange face is required to avoid surface marring. The hex drive head is compatible with standard 3/4-inch wrenches and sockets. Minimum order quantity is 10 pieces, packaged as individual units. Meets IFI 111 and SAE J429 standards.

Key Features

• 1/2-13 UNC thread form for broad compatibility with standard inch-system hardware
• 2-1/2-inch length under head with 1-1/4-inch thread engagement length
• Grade 8 alloy steel construction for high tensile and proof load capacity
• 1-5/64-inch smooth flange diameter distributes load without a separate washer
• Uncoated bright finish — suitable for plating or coating post-installation if required
• Meets IFI 111 and SAE J429 fastener standards

Compatibility

Designed as an OEM-style replacement or direct-use fastener for any application specifying a 1/2-13 UNC partially threaded smooth flange bolt with Grade 8 alloy steel and IFI 111 or SAE J429 compliance.

Installation Notes

Installation is performed by a qualified mechanic or maintenance technician using a 3/4-inch hex wrench or socket driver. Confirm mating nut or tapped hole thread class before installation. De-energize and lock out all equipment before fastener removal or replacement on live machinery. Do not exceed the torque specification defined by the applicable engineering standard for 1/2-13 Grade 8 hardware.