S-94564A244 4-40 x 7/16" Set Screws

Key Features & Benefits at a Glance

• Non-conductive and corrosion-resistant Nylon Plastic construction ensures reliable performance in electrical applications and harsh environments without risk of galvanic corrosion.
• Secure, flush-mount fastening with a headless design and flat tip prevents protrusion and provides a clean finish while maintaining a firm grip on components.
• Easy installation and removal using a standard 3/64" hex key, offering a positive drive that reduces the risk of tool slippage and head stripping.
• Wide temperature tolerance from -40°F to 185°F maintains material integrity and clamping force in both freezing and elevated temperature conditions.
• Precise thread engagement with UNC coarse threads and Class 2A fit ensures easy starting and consistent performance in a variety of materials.
• Environmentally compliant with RoHS 3 standards, making it suitable for use in regulated industries and eco-conscious manufacturing.
• Lightweight and cost-effective plastic material reduces overall assembly weight and is ideal for high-volume production where metal fasteners are unnecessary.

Professional Applications & Engineering Value

This 4-40 UNC Nylon Plastic set screw is engineered to address common challenges in precision assembly, such as the need for electrical insulation and weight reduction. The headless design with a flat tip provides a secure, low-profile fastening solution that prevents damage to sensitive components and maintains alignment in mechanisms like adjustable collars, knobs, and shafts. Its right-hand coarse thread and Class 2A thread fit ensure quick installation and reliable holding power in plastics and soft metals, reducing assembly time. The Nylon material offers excellent resistance to chemicals and vibrations, making it ideal for applications in electronics, automotive interiors, and consumer goods where temperature fluctuations from -40°F to 185°F are common. This fastener delivers consistent performance without the risk of rust or conductivity issues, enhancing the durability and safety of your products.

Specification Summary & Compliance

This set screw adheres to UNC thread standards with a 4-40 thread size, 0.112" thread diameter, and coarse thread spacing. It features a Class 2A thread fit for consistent dimensional accuracy and ease of assembly. The fastener is manufactured in compliance with RoHS 3 (2015/863/EU) regulations, ensuring it is free from hazardous substances. With a length of 7/16" and a flat tip, it is designed for precise applications in the inch system.