S-90303A035 6-32 x 1/2" ASME B18.3, ASTM A574 Nylon-Tip Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Surface Protection: Non-marring nylon tip prevents damage to delicate surfaces during installation and use
• Exceptional Strength: 180,000 psi tensile strength and Rockwell C39 hardness ensure reliable performance in demanding applications
• Corrosion Resistance: Black-oxide coating on alloy steel provides enhanced durability and protection against environmental factors
• Precision Fit: Class 3A thread fit with UNC coarse threading delivers secure fastening with reduced cross-threading risk
• Wide Temperature Tolerance: Nylon tip maintains integrity across -50° to 250°F temperature range for versatile applications
• Secure Drive System: Hex socket head design allows for high torque application without slippage or stripping
• Full Thread Engagement: Completely threaded shank ensures maximum holding power across the entire fastener length

Professional Applications & Engineering Value

This black-oxide alloy steel socket head cap screw with non-marring nylon tip addresses critical challenges in precision assembly applications where surface protection and high strength are paramount. The combination of 180,000 psi tensile strength and Class 3A thread fit ensures reliable fastening in machinery, electronic enclosures, and automotive components where vibration resistance is crucial. The protective nylon tip eliminates surface damage on finished products, making it ideal for applications involving delicate materials, painted surfaces, or precision instruments. The UNC coarse threading provides quick assembly while maintaining structural integrity, and the hex drive socket enables precise torque control in confined spaces where traditional fasteners cannot be used effectively.

Specification Summary & Compliance

This 6-32 UNC thread socket head cap screw features precise Class 3A thread fit with coarse thread spacing and full threading along the 1/2" length. Manufactured to ASME B18.3 specifications using ASTM A574 alloy steel, the fastener meets rigorous industrial standards for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while maintaining the highest quality standards for professional applications.