S-91875A165 7/16"-20 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments.
• High-strength fastening reliability due to the fine 7/16"-20 UNF thread, ensuring secure and vibration-resistant connections.
• Easy installation and removal with the external hex drive design, allowing for standard wrench or socket tool compatibility.
• Precise thread engagement with Class 2B thread fit, minimizing cross-threading and ensuring consistent performance.
• RoHS 3 compliance meets environmental regulations, making it suitable for global industrial supply chains.
• Durable cap profile provides a finished appearance and protects threads from damage during handling and use.

Professional Applications & Engineering Value

This zinc-plated steel cap nut is engineered to address common industrial fastening challenges, such as corrosion and vibration loosening. The fine UNF thread and Class 2B fit ensure tight, reliable seals in applications like machinery assembly, automotive components, and electrical enclosures. Its external hex drive allows for quick installation with standard tools, reducing labor time. The zinc plating offers a protective barrier against moisture and chemicals, making it ideal for outdoor or high-humidity environments. By combining high-strength steel with precise threading, this cap nut delivers long-term performance in demanding industrial applications, minimizing maintenance needs and downtime.

Specification Summary & Compliance

This cap nut adheres to UNF fine thread standards with a Class 2B thread fit for consistent dimensional accuracy. It is manufactured from zinc-plated steel and complies with RoHS 3 (2015/863/EU) under exemption 6(a)-I for lead as an alloying element in steel. Key specifications include a thread size of 7/16"-20, right-hand thread direction, 5/8" width, and 11/16" height, ensuring reliable performance in various industrial fastening scenarios.