Value Collection 716158MSC Flange Bolt 5/8-11 Unc 2-1/2 in

Product Description

The VALUE COLLECTION 716158MSC is a smooth flange bolt designed for high-strength fastening applications in mechanical, HVAC, and industrial assembly work. It features a 5/8-11 UNC thread pattern with a 2-1/2 inch length under head and 1-1/2 inch thread length, making it a partially threaded fastener suited for controlled clamping depth. The bolt is manufactured from alloy steel rated at 170,000 psi tensile strength and meets ASTM A574 standards. The integrated smooth flange distributes clamping load across a wider bearing surface, reducing the need for a separate washer. The 12-point drive head accepts a 5/8 inch socket for high-torque installation. The bright, uncoated finish is standard for controlled environments and indoor mechanical assemblies.

This flange bolt is suited for use in structural mechanical assemblies, HVAC equipment mounting, pump and compressor flanges, and general industrial fastening where a high-strength UNC-threaded bolt with an integrated bearing flange is required. It is appropriate for residential and light commercial mechanical installations as well as heavier industrial applications where ASTM A574 alloy steel fasteners are specified. Installed by millwrights, HVAC technicians, plumbers, and general mechanical contractors.

Key Features

• 5/8-11 UNC thread size with 1-1/2 inch threaded length for partial thread engagement
• 2-1/2 inch length under head for precise grip length control
• Alloy steel construction rated at 170,000 psi tensile strength
• Smooth flange diameter of 15/16 inch (0.921 to 0.938 inches) distributes clamping load without a separate washer
• 12-point drive head for high-torque installation with standard socket tools
• Meets ASTM A574 fastener standard
• Bright uncoated finish suitable for indoor and controlled-environment use

Compatibility

Designed as a standard ASTM A574 alloy steel smooth flange bolt for use in any application requiring a 5/8-11 UNC partially threaded fastener with an integrated smooth flange bearing surface.

Installation Notes

Installation should be performed by a qualified mechanic or trade professional using a 5/8 inch 12-point socket and torque wrench appropriate to the joint specification. Verify that mating threads are clean and free of debris before installation. The bright uncoated finish offers no corrosion resistance, so this fastener should not be used in wet or outdoor environments without additional protection. Always follow applicable equipment manufacturer torque specifications and relevant codes for the assembly type.