S-92815A127 1/2"-13 Thumb Nuts

Key Features & Benefits at a Glance

• Enhanced grip and torque application with a fully knurled round head surface, reducing slippage during manual tightening in tight spaces.
• Superior corrosion resistance provided by the black-oxide steel finish, extending the nut's service life in demanding industrial environments.
• Space-saving low-profile design (3/8" height) for applications with limited clearance, without compromising on strength.
• Reliable and quick assembly due to the coarse UNC 1/2"-13 thread and Class 2B fit, ensuring smooth engagement and reduced cross-threading risk.
• Secure and stable fastening supported by a 3/4" collar diameter, distributing load effectively and preventing loosening under vibration.
• Compliance with stringent environmental regulations including REACH and RoHS 3, making it suitable for global supply chains and sensitive applications.
• Right-hand thread direction for standard installation, facilitating intuitive use and compatibility with common machinery and tools.

Professional Applications & Engineering Value

This black-oxide steel thumb nut is engineered to address common challenges in industrial assembly, such as the need for rapid, tool-free adjustments and corrosion resistance. The low-profile, knurled round head offers exceptional manual grip, ideal for applications where frequent disassembly is required or where tool access is restricted, such as in machinery panels, electrical enclosures, and automotive components. The coarse UNC thread with Class 2B fit ensures durable performance, minimizing wear and maintaining thread integrity in high-vibration environments. Made from robust steel with a protective black-oxide coating, it provides long-term reliability against rust and wear, supporting efficient maintenance and reducing downtime in industrial fastening systems.

Specification Summary & Compliance

This thumb nut features a 1/2"-13 UNC coarse thread with Class 2B thread fit for consistent dimensional accuracy and easy assembly. It adheres to standard inch measurements, with precise specifications including a 1" head diameter, 3/4" collar diameter, and 3/8" height. The product is manufactured in compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, with an exemption for lead as an alloying element in steel, ensuring environmental safety and suitability for various industrial applications.