S-94564A241 4-40 x 5/16" Set Screws

Key Features & Benefits at a Glance

• Non-conductive and corrosion-resistant nylon plastic ensures safe, reliable performance in electrical and chemical environments without risk of short circuits or rust.
• Precise Class 2A thread fit guarantees consistent engagement and secure fastening, minimizing loosening in vibration-prone applications.
• Compact headless hex drive design allows for flush installation in tight spaces, providing a clean finish and unobstructed assembly.
• Wide operating temperature range (-40° to 185°F) maintains integrity and function in both freezing and elevated temperature conditions.
• Flat tip design offers superior surface contact for secure positioning of components on shafts or in threaded holes.
• RoHS 3 compliance ensures environmental safety and meets global regulatory standards for hazardous substance restrictions.
• Coarse UNC threading enables quick installation and removal, reducing assembly time in high-volume production settings.

Professional Applications & Engineering Value

This 4-40 UNC nylon plastic set screw is engineered to address common industrial challenges where metal fasteners fall short. Its off-white nylon material provides excellent electrical insulation, making it ideal for electronics, PCB mounting, and sensitive equipment to prevent galvanic corrosion and interference. The headless design with 3/64" hex drive ensures a low-profile installation, perfect for confined spaces in machinery, automotive controls, and consumer devices. With a Class 2A thread fit and coarse thread spacing, it delivers reliable clamping force without stripping, while the flat tip securely mates with surfaces to resist shifting. Operating across a broad temperature range, this screw maintains dimensional stability in varied environments, from outdoor enclosures to heated assemblies, ensuring long-term performance without degradation.

Specification Summary & Compliance

This set screw adheres to UNC thread standards with a Class 2A thread fit for precise dimensional accuracy and ease of assembly. It meets RoHS 3 (2015/863/EU) compliance, confirming it is free from restricted hazardous substances. Manufactured from durable nylon plastic, it is suitable for industrial applications requiring non-metallic, lightweight fasteners with reliable mechanical properties.