S-94450A533 1"-12 ANSI/ASME 18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• Reliable left-hand thread engagement prevents unintentional loosening in applications with counter-clockwise rotational forces.
• Optimized space-saving design due to its thin profile, allowing for use in compact assemblies without compromising strength.
• Precise and secure fastening ensured by the Class 2B thread fit and fine UNF thread, providing vibration resistance and reduced risk of stripping.
• Guaranteed dimensional interchangeability and performance compliance with the ANSI/ASME B18.2.2 standard.
• Enhanced environmental and workplace safety through full compliance with RoHS 3 and REACH regulations.
• Easy installation and removal with a standard external hex drive, compatible with common wrenches and sockets.

Professional Applications & Engineering Value

This 1"-12 UNF left hand thin hex nut is engineered to solve critical challenges in demanding industrial settings. Its 18-8 Stainless Steel composition provides excellent resistance to rust and corrosion, making it a durable choice for machinery, marine equipment, and chemical processing applications where exposure to moisture and corrosive agents is a concern. The left-hand thread direction is specifically designed for components that rotate counter-clockwise, preventing standard right-hand threaded fasteners from loosening under operational stress. The fine thread spacing and Class 2B thread fit offer superior clamping force and vibration resistance, which is crucial for maintaining joint integrity in high-vibration environments like automotive assemblies or heavy machinery. The thin hex nut profile is a key engineering feature, enabling its use in spaces with limited clearance without sacrificing the required tensile strength, providing designers with greater flexibility in compact and weight-sensitive designs.

Specification Summary & Compliance

This hex nut conforms to ANSI/ASME B18.2.2 dimensional standards. The thread is a 1"-12 UNF (Unified National Fine) with a left-hand direction and a Class 2B thread fit, ensuring consistent and precise mating with corresponding male threads. Key dimensions include a width across flats of 1 1/2 inch and a height of 35/64 inch. The product is manufactured to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to the latest environmental and safety regulations for hazardous substances.