Value Collection -34697-11/4 Flange Bolt 3/8-16 Unc

Product Description

The VALUE COLLECTION -34697-11/4 is an alloy steel flange bolt designed for high-load fastening applications requiring a built-in bearing surface. The bolt features a 3/8-16 UNC thread and a 1-1/4 inch length under head. The 12-point drive allows high torque input in tight spaces. A plain finish means the fastener ships without additional coating, which is appropriate for applications where coating adhesion or custom finishing will be applied on-site. This bolt meets ASME B18.3 standards and is suited for mechanical assembly, HVAC equipment mounting, pump flanges, and structural fastening tasks handled by trade professionals.

This flange bolt is appropriate for use in mechanical and industrial applications where a flange-style bearing surface is required to distribute clamping load without a separate washer. Common install scenarios include equipment base fastening, piping flange assemblies, and panel or bracket mounting in commercial and residential mechanical systems. The 3/8-16 UNC thread is one of the most common inch-series thread sizes in trade work, making this bolt a straightforward replacement or new-installation fastener.

Key Features

• 3/8-16 UNC thread for compatibility with standard inch-series tapped holes and nuts
• 1-1/4 inch length under head suits moderate-depth fastening applications
• 12-point drive allows high-torque installation in confined spaces
• Alloy steel construction provides strength suitable for mechanical and structural fastening
• Integrated flange bearing surface eliminates the need for a separate flat washer
• Meets ASME B18.3 dimensional standards for inch-series socket screws and related fasteners

Compatibility

Designed as a standard inch-series flange bolt for use in any application requiring a 3/8-16 UNC thread and 1-1/4 inch grip length. Consult equipment documentation to confirm thread engagement depth and drive clearance before installation.

Installation Notes

Installation is performed by licensed mechanical contractors, millwrights, or qualified trade technicians. Ensure the mating tapped hole or nut meets 3/8-16 UNC thread specifications before driving the fastener. A 12-point socket or bit driver of the correct size is required. De-energize and lock out any equipment before fastening or removing bolts in live mechanical systems per applicable OSHA lockout/tagout procedures.