S-94905A005 4-40 Hex Nuts

Key Features & Benefits at a Glance

• Excellent chemical resistance for reliable performance in harsh industrial environments without corrosion or degradation.
• High electrical insulation properties to prevent short circuits and enhance safety in electrical assemblies.
• Broad temperature tolerance from -40°F to 210°F ensures stable operation in varying thermal conditions.
• Precise Class 2B thread fit guarantees smooth assembly and secure fastening with minimal risk of cross-threading.
• Crystal-clear polycarbonate material allows for visual inspection and aesthetic appeal in transparent designs.
• RoHS 3 compliance meets environmental regulations, supporting sustainable and safe manufacturing practices.
• Standard external hex drive design enables easy installation with common tools, boosting assembly efficiency.

Professional Applications & Engineering Value

Engineered from durable polycarbonate plastic, this 4-40 UNC hex nut addresses critical challenges in industries requiring non-conductive, lightweight, and corrosion-resistant fasteners. Its clear transparency is ideal for applications where visual monitoring of components is essential, such as in medical devices, optical equipment, and electronic enclosures. The coarse thread spacing and Class 2B thread fit ensure quick, reliable engagement, reducing assembly time and minimizing the risk of thread damage. With a temperature range of -40°F to 210°F, it performs consistently in environments exposed to thermal cycling, while its RoHS 3 compliance makes it suitable for global markets with strict environmental standards. This nut is a cost-effective solution for industrial plastic fasteners that demand electrical insulation and chemical resistance without sacrificing strength.

Specification Summary & Compliance

This 4-40 UNC hex nut features a Class 2B thread fit for precise dimensional accuracy and smooth threading, adhering to UNC coarse thread standards. It is manufactured with a standard hex nut profile and external hex drive, ensuring compatibility with common tools. The nut complies with RoHS 3 (2015/863/EU) regulations, confirming it is free from hazardous substances, and is designed for use in inch system applications with dimensions of 17/64" width and 3/32" height.