S-99477A310 8-32 x 1" Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Durable Polypropylene Construction - Provides excellent chemical resistance and lightweight performance for demanding industrial environments
• Wide Temperature Tolerance - Maintains structural integrity from -20° to 210° F (-29° to 99° C) for reliable operation in varying conditions
• Precision Class 2A Thread Fit - Ensures consistent mating and secure fastening with standard UNC coarse thread components
• Optimized Hex Drive Design - 9/64" socket head enables efficient installation with standard hex tools while resisting stripping
• Full Thread Engagement - Maximizes holding power and distribution along the entire 1" length for superior load-bearing capability
• Regulatory Compliance Ready - Meets RoHS 3 and REACH environmental standards for global manufacturing applications
• Corrosion-Resistant Properties - Polypropylene material and off-white color provide inherent resistance to moisture and chemical degradation

Professional Applications & Engineering Value

This 8-32 UNC thread socket head cap screw delivers exceptional value in applications where metal fasteners are unsuitable due to electrical insulation requirements, chemical exposure, or weight constraints. The polypropylene plastic construction offers superior dielectric properties while maintaining mechanical strength across a broad temperature range from -20° to 210° F. Engineered with Class 2A thread fit and coarse UNC threading, this fastener ensures reliable engagement in plastic assemblies, electronic enclosures, and laboratory equipment. The 9/64" hex drive socket head design provides secure tool engagement without the risk of galvanic corrosion common in mixed-material applications, making it ideal for HVAC systems, food processing equipment, and marine environments where corrosion resistance is critical.

Specification Summary & Compliance

This socket head cap screw features precision 8-32 UNC coarse threads with Class 2A thread fit tolerance, ensuring consistent performance with standard mating components. The fastener maintains dimensional accuracy with 0.164" thread diameter and 0.27" head diameter throughout its 1" fully threaded length. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, this component meets international environmental standards for restricted substances. The right-hand thread direction and standard socket head profile ensure compatibility with existing industrial fastening systems and tooling.