Value Collection 703098MSC Smooth Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION 703098MSC is a smooth flange bolt designed for secure, high-strength fastening in mechanical and structural assemblies. This fully threaded bolt features a 5/16-18 UNC thread and a 1-1/2 inch length under head, providing consistent clamping force across its full shank length. The integrated smooth flange distributes load evenly against the mating surface, reducing the need for a separate washer. Manufactured from alloy steel with a material grade rating of 170M PSI and meeting ASTM A574 standards, this bolt is built for demanding industrial and trade applications. Installation is performed using a 12-point drive with a 5/16 inch drive size.

This bolt is suited for use in HVAC equipment assembly, plumbing fixture mounting, electrical enclosure fabrication, and general mechanical fastening where a high-strength, fully threaded flange bolt is required. The smooth flange profile makes it appropriate for applications where the flange must seat flush without marring softer mating surfaces. It is commonly installed by maintenance technicians, millwrights, and trade professionals working on light-to-medium duty assemblies requiring precise thread engagement and load distribution.

Key Features

• Fully threaded 5/16-18 UNC shank for maximum thread engagement along the full 1-1/2 inch length under head
• Smooth flange with 15/32 inch (0.457 to 0.469 inches) diameter distributes clamping load without a separate washer
• Alloy steel construction rated at 170M PSI for high-strength fastening
• Meets ASTM A574 standard for socket head cap screws and high-strength fasteners
• 12-point drive design allows higher torque application in confined spaces
• Bright/uncoated finish suitable for dry or controlled-environment installations

Compatibility

Designed as an OEM-style replacement or standard-service fastener for assemblies requiring a 5/16-18 UNC fully threaded smooth flange bolt meeting ASTM A574 specifications.

Installation Notes

Installation requires a 12-point socket or bit in the 5/16 inch drive size. Power down or de-energize any equipment before servicing fastened assemblies. Inspect mating threads for damage or contamination before installation. Follow equipment manufacturer torque specifications and applicable industry codes for the assembly type being serviced.