S-99477A260 8-32 x 3/8" Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Excellent chemical and moisture resistance from polypropylene plastic construction, ideal for corrosive or wet environments
• Precise and reliable fastening ensured by Class 2A thread fit, reducing cross-threading and assembly errors
• Broad temperature tolerance from -20° to 210° F for stable performance in varied operating conditions
• Secure, tamper-resistant installation with a standard socket head and 9/64" hex drive for high-torque applications
• Simplified compliance and sourcing with RoHS 3 and REACH environmental regulations met
• Durable UNC coarse threading provides strong holding power and is less prone to clogging in plastic assemblies
• Lightweight and non-conductive properties make it perfect for electrical insulation and weight-sensitive designs

Professional Applications & Engineering Value

This 8-32 UNC thread socket head cap screw is engineered to address common challenges in industrial assembly, such as corrosion, electrical conductivity, and weight. The polypropylene plastic material offers inherent resistance to a wide range of chemicals and moisture, preventing degradation in harsh environments. Its right-hand coarse thread (UNC) and Class 2A thread fit ensure quick, secure fastening with reduced risk of stripping in plastic or soft materials, making it a reliable choice for electronics enclosures, automotive components, and consumer appliances. The standard socket head profile with a hex drive allows for high torque application in confined spaces, enhancing assembly efficiency and product longevity.

Specification Summary & Compliance

This fastener features a Class 2A thread fit per unified inch standards, with UNC coarse threads and a 3/8" length under the inch system. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances for safe use in various industrial and consumer applications.