Value Collection C39062 Flange Bolt 1/2-20 Unf 2-1/2 in Grade 8

Product Description

The VALUE COLLECTION C39062 is a smooth flange bolt designed for high-strength fastening applications requiring a wide bearing surface without the need for a separate washer. Manufactured from Grade 8 alloy steel in an uncoated finish, this bolt features a 1/2-20 UNF thread with a 2-1/2 inch length under head and is partially threaded at 1-1/4 inch thread length. The integrated smooth flange measures 1-5/64 inches (1.0781 inches) in diameter, distributing clamp load across a broader area. It is driven by a standard hex drive and meets IFI 111 and SAE J429 standards. Licensed trades and maintenance professionals working in mechanical, industrial, and heavy equipment environments rely on this grade for demanding joint requirements.

This flange bolt is suited for use in structural assemblies, heavy equipment, and mechanical systems where a Grade 8 fastener is specified. The smooth flange eliminates the need for a flat washer in many applications, simplifying assembly and reducing part count. Typical uses include machinery frames, drivetrain components, and other assemblies requiring a high-clamp-load, partially threaded fastener in a 1/2-20 UNF configuration. Sold in a package quantity of 10 per order.

Key Features

• Grade 8 alloy steel construction for high tensile strength in demanding joint applications
• Smooth flange eliminates the need for a separate flat washer and distributes bearing load
• Partially threaded shank allows for precise grip length control in bolted joints
• 1/2-20 UNF thread for fine-pitch engagement with increased thread engagement per inch
• Uncoated finish for use where coating-free or subsequently treated surfaces are required
• Meets IFI 111 and SAE J429 fastener standards for dimensional and mechanical compliance

Compatibility

Designed as an OEM-style and aftermarket replacement or supplemental fastener for assemblies specifying a 1/2-20 UNF partially threaded smooth flange bolt in Grade 8 alloy steel per IFI 111 and SAE J429.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician familiar with proper torque procedures for Grade 8 fasteners. Always use a calibrated torque wrench and follow the torque specifications provided by the equipment manufacturer for the specific joint and clamp load requirements. Inspect mating threads and seating surfaces for damage or contamination before installation. Do not substitute a lower-grade fastener in applications where Grade 8 is specified by the OEM or design engineer.