Value Collection C39047 Flange Bolt 5/8-11 Unc 2 in Grade 8

Product Description

The VALUE COLLECTION C39047 is a smooth flange bolt designed for high-strength fastening applications requiring a wide bearing surface without a separate washer. Sized at 5/8-11 UNC with a 2-inch length under head, this partially threaded bolt is manufactured from Grade 8 alloy steel and left uncoated. The integrated smooth flange measures 1-21/64 inches (1.3281 inches) in diameter and distributes clamping load evenly across the mating surface. Compliance with IFI 111 and SAE J429 confirms it meets established dimensional and mechanical standards. Licensed tradespeople and industrial maintenance technicians typically specify this fastener where vibration resistance and high tensile strength are required.

This flange bolt is suited for structural assemblies, equipment mounting, and mechanical connections in commercial, industrial, and trade-service environments. The hex drive allows use with standard wrenches and sockets, making it a straightforward fit in HVAC equipment mounting, mechanical room installations, and general fabrication work. The partial threading engages full thread depth in the bearing zone while leaving the shank smooth through thinner mating materials for shear load handling.

Key Features

• 5/8-11 UNC thread size with 2-inch length under head for precise depth control
• Grade 8 alloy steel construction for high tensile and proof-load strength
• Integrated smooth flange at 1-21/64 inches diameter eliminates the need for a separate flat washer
• Partial threading provides a smooth shank section for shear load applications
• Hex drive head compatible with standard wrenches and impact sockets
• Meets IFI 111 and SAE J429 standards for dimensional accuracy and mechanical properties

Compatibility

Designed as a direct-fit replacement or new-installation fastener for any assembly specifying a 5/8-11 UNC smooth flange bolt with a 2-inch length under head and Grade 8 alloy steel material to IFI 111 and SAE J429 standards.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician familiar with torque specifications for Grade 8 fasteners at 5/8-11 UNC. Always consult the equipment manufacturer's torque requirements for the specific joint before final tightening. Ensure mating threads are clean and free of debris before installation. Do not mix with metric fasteners or lower-grade hardware in the same joint assembly.