Value Collection C39028 Flange Bolt 3/8-16 Unc Grade 8 25-pack

Product Description

The VALUE COLLECTION C39028 is a smooth flange bolt designed for high-strength fastening applications in mechanical, HVAC, plumbing, and general trade work. Sized at 3/8-16 UNC with a 1-1/2 inch length under head, this bolt is fully threaded from tip to flange face. The integrated smooth flange measures 13/16 inches (0.8125 inches) in diameter, distributing clamping load across a wider bearing surface without the need for a separate washer. Manufactured from Grade 8 alloy steel to SAE J429 standards, it delivers the high tensile and proof load strength required in demanding service environments. Sold in a package of 25 pieces.

This flange bolt is suited for use in structural assemblies, bracket mounting, equipment frames, and mechanical connections where a standard hex bolt and washer combination would otherwise be required. The smooth flange profile seats cleanly against flat surfaces and flanged components. It is commonly used by HVAC technicians, pipefitters, millwrights, and general mechanical contractors when assembling or servicing equipment that requires reliable, vibration-resistant fastening. The uncoated finish makes it straightforward to inspect and suitable for use where corrosion exposure is controlled or where post-installation coating is applied.

Key Features

• 3/8-16 UNC thread size with 1-1/2 inch length under head — fully threaded
• Smooth flange diameter of 13/16 inches provides integrated load-bearing surface
• Grade 8 alloy steel construction meets SAE J429 high-strength fastener standard
• Hex drive for use with standard wrenches and sockets
• Uncoated finish — ready for inspection or secondary coating
• Sold in a convenient 25-piece package

Compatibility

Designed as a standard SAE J429 Grade 8 smooth flange bolt for use in any application requiring a 3/8-16 UNC fully threaded hex flange fastener with a 13/16 inch flange diameter.

Installation Notes

Installation is performed with a standard hex wrench or socket sized for 3/8-inch hex bolt heads. Ensure mating threads are clean and free of debris before assembly. Always de-energize or shut down equipment per lockout/tagout procedures before fastening or removing bolts from live mechanical systems. Follow applicable torque specifications provided by the equipment manufacturer or relevant codes such as ASME or SAE guidelines for Grade 8 fasteners.