Bowmalloy BOWMP36611 Hex Nut 1/4-28 Grade 9 Steel 50 Pack

Product Description

The BOWMALLOY BOWMP36611 is a Grade 9 steel hex nut with a 1/4-28 thread size and a Bowma-Guard protective finish. Grade 9 fasteners deliver high tensile strength for demanding mechanical and structural applications. The Bowma-Guard finish provides corrosion resistance, making this nut suitable for both indoor and outdoor service environments. Right-hand thread direction follows standard installation convention. With a width across flats of 7/16 inches and a height of 0.22 inches, this nut is sized for use with standard 1/4-28 UNF bolts and threaded rod. Each package contains 50 nuts.

This hex nut is used across a wide range of trade applications including HVAC equipment mounting, plumbing fixture assemblies, electrical enclosure hardware, and general mechanical fastening. The 1/4-28 UNF thread is a fine-pitch designation common in applications requiring vibration resistance and precise torque control. The Grade 9 material rating makes it appropriate for high-stress connections where standard Grade 2 or Grade 5 hardware would be undersized for the load requirements.

Key Features

• Grade 9 steel construction for high tensile strength in demanding fastening applications
• Bowma-Guard finish provides corrosion protection for extended service life
• 1/4-28 UNF fine-pitch thread for vibration-resistant connections
• Right-hand thread direction matches standard tooling and installation practices
• 7/16 inch width across flats fits standard hex drivers and wrenches
• Packaged in quantities of 50 nuts per pack

Compatibility

Designed for use with 1/4-28 UNF threaded fasteners including bolts, screws, and threaded rod in mechanical, electrical, and HVAC assemblies requiring Grade 9 strength fasteners.

Installation Notes

Installation is performed by licensed tradespeople or qualified technicians using standard hex wrenches or nut drivers sized for a 7/16 inch hex. Always de-energize equipment and relieve any system pressure before replacing or installing fasteners on live assemblies. Follow applicable codes including NEC for electrical enclosures and IFGC or IPC for mechanical systems where fasteners are part of a structural or pressure-retaining connection. Do not mix Grade 9 nuts with lower-grade bolt hardware, as mismatched grades can compromise joint integrity.