S-90738A160 7/16"-20 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced Durability: Zinc-plated steel construction provides superior corrosion resistance, extending service life in harsh industrial environments.
• High-Strength Performance: Grade 5 rating ensures reliable clamping force and resistance to vibration loosening in demanding applications.
• Precision Thread Fit: Class 2B thread fit offers smooth assembly and consistent engagement, reducing the risk of cross-threading.
• Left-Hand Thread Security: Reverse threading direction provides secure fastening in applications where standard right-hand threads may loosen from counter-rotational forces.
• Fine Thread Advantage: 7/16"-20 UNF fine thread spacing allows for finer adjustment and improved tension control in precision assemblies.
• Standard Hex Profile: External hex drive design enables easy installation and removal with common tools, streamlining maintenance workflows.
• Regulatory Compliance: Meets RoHS 3 and REACH environmental standards, ensuring safe use in regulated industrial sectors.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel hex nut with 7/16"-20 UNF left-hand thread is engineered to solve critical fastening challenges in rotating machinery, automotive systems, and heavy equipment. The left-hand thread direction prevents unintended loosening in counter-clockwise rotating applications, while the fine thread spacing delivers superior vibration resistance and precise clamping force distribution. The zinc plating creates a protective barrier against corrosion, making these industrial hex nuts ideal for outdoor equipment and manufacturing environments where moisture and chemicals are present. The Class 2B thread fit ensures consistent performance across multiple installation cycles, reducing assembly time and maintenance costs in production settings.

Specification Summary & Compliance

This hex nut features precise 7/16"-20 UNF fine threads with Class 2B thread fit tolerance for optimal engagement. Manufactured to inch measurement standards with standard external hex drive profile (11/16" width, 3/8" height). The fastener meets Grade 5 strength classification requirements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial safety and sustainability.