S-91030A435 7/16"-20 Flange Nuts

Key Features & Benefits at a Glance

• Enhanced load distribution with a 1" flange diameter, reducing surface pressure and preventing material damage in high-stress applications
• Superior corrosion resistance from the black-oxide steel finish, extending service life in harsh industrial environments
• Precise thread engagement with Class 2B fit and UNF fine threads (7/16"-20), ensuring reliable, vibration-resistant connections
• Easy installation and removal using the standard external hex drive (3/4" width), compatible with common tools for efficient maintenance
• Robust structural integrity from the 0.16" flange thickness and steel material, supporting heavy-duty fastening requirements
• Regulatory compliance assurance with RoHS 3 standards, meeting environmental regulations for industrial use
• Versatile right-hand threading for standard assembly processes, streamlining production and repair workflows

Professional Applications & Engineering Value

This black-oxide steel flange nut delivers exceptional performance in demanding industrial applications where vibration resistance and corrosion protection are critical. The UNF fine thread (7/16"-20) with Class 2B precision maintains secure connections under dynamic loads, preventing loosening in machinery, automotive assemblies, and structural frameworks. The integrated 1" flange eliminates the need for separate washers, distributing clamp force evenly to protect soft materials and reduce installation time. Engineered with a standard hex profile for tool accessibility, it ensures reliable fastening in confined spaces while the black-oxide surface treatment provides a durable barrier against moisture and chemicals, extending component lifespan in harsh operating conditions.

Specification Summary & Compliance

This flange nut features 7/16"-20 UNF fine threads with Class 2B thread fit for precise tolerance alignment. Dimensions include a 1" flange diameter, 0.16" flange thickness, 3/4" width across flats, and 9/16" height. Manufactured from black-oxide coated steel with external hex drive and right-hand thread direction, it complies with RoHS 3 (2015/863/EU) standards under exemption 6(a) for lead as a steel alloying element, ensuring environmental regulatory adherence for industrial distribution.