S-95868A268 4-40 x 1 3/8" Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant nylon plastic construction eliminates rust and galvanic corrosion, ideal for harsh or chemical environments.
• Wide operating temperature range from -40° to 140° F ensures reliable performance and dimensional stability in both extreme cold and moderate heat.
• Hex socket drive design with a 3/32" key provides secure, high-torque installation and a clean, flush finish without protruding heads.
• Class 2A thread fit for UNC coarse threads offers easier, faster assembly and reduced risk of cross-threading compared to finer threads.
• Fully threaded 1 3/8" length and right-hand direction delivers maximum grip and holding power across the entire fastener for secure connections.
• Lightweight and electrically non-conductive properties make it perfect for electronics, insulation, and applications where metal fasteners are unsuitable.
• RoHS 3 (2015/863/EU) compliance guarantees the product is free from hazardous substances, meeting strict international environmental and safety standards.

Professional Applications & Engineering Value

Engineered for demanding applications, this 4-40 UNC Nylon Plastic Socket Head Cap Screw solves critical challenges in industries like electronics, food processing, and marine equipment. Its inherent corrosion resistance prevents degradation from moisture, chemicals, and salts, eliminating the need for protective coatings required with metal alternatives. The coarse UNC thread and Class 2A fit ensure rapid, reliable assembly in plastics and soft materials, reducing installation time and potential for thread stripping. The hex drive and standard socket head profile allow for high torque application in confined spaces, providing a secure, vibration-resistant fastening solution that maintains integrity across its -40° to 140° F temperature range.

Specification Summary & Compliance

This fastener adheres to the Inch system with a 4-40 UNC coarse thread and a precise Class 2A thread fit for consistent, interchangeable assembly. The fully threaded design and 1 3/8" length provide uniform clamping force. It is manufactured to be RoHS 3 (2015/863/EU) Compliant, ensuring it meets rigorous environmental directives for hazardous substance restriction.