S-94564A520 1/2"-13 x 1 1/4" Set Screws

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon plastic construction, ideal for harsh environments where metal fasteners would degrade
• Secure, vibration-resistant locking provided by the coarse UNC thread and Class 2A fit, ensuring reliable performance in assemblies
• Easy installation and removal with the 1/4" hex drive, allowing for high torque application without the need for a protruding head
• Broad temperature tolerance from -40°F to 185°F, making it suitable for applications with significant thermal cycling
• Electrical insulation and non-magnetic properties of nylon prevent galvanic corrosion and interference in sensitive electronic equipment
• Lightweight and durable design reduces overall component weight while maintaining strength for numerous fastening cycles
• Environmentally responsible manufacturing with full compliance to RoHS 3 (2015/863/EU) regulations

Professional Applications & Engineering Value

This nylon plastic set screw is engineered to solve common industrial challenges where metal fasteners fall short. Its headless design with a flat tip provides a flush finish, perfect for securing collars, knobs, and gears on shafts without protruding hardware. The 1/2"-13 UNC coarse thread and Class 2A thread fit ensure quick assembly and a secure hold, resisting loosening under vibration. Made from robust, off-white nylon, it offers inherent resistance to chemicals, corrosion, and electrical conductivity, making it an ideal choice for electrical enclosures, food processing machinery, and marine applications. The material's low thermal conductivity also prevents heat transfer, protecting sensitive components. Its temperature resistance from -40° to 185° F ensures reliable performance in both freezing and elevated temperature environments, providing long-term durability and reducing maintenance needs.

Specification Summary & Compliance

This set screw conforms to Unified Coarse (UNC) thread standards with a Class 2A thread fit for consistent dimensional accuracy and reliable engagement. Key specifications include a 1/2"-13 thread size, 1-1/4" length, and a 1/4" hex drive for installation. The flat tip design ensures maximum surface contact for secure fastening. It is manufactured to be RoHS 3 (2015/863/EU) Compliant, adhering to strict environmental and safety regulations, and is suitable for use in various industrial and commercial applications requiring a non-metallic, durable fastener.