S-93310A148 6-32 x 1/2" ASME B18.3, ASTM F879, MIL-DTL-18240 Thread-Locking Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with permanent nylon patch thread locker that maintains secure fastening from -70° to 250° F, preventing loosening in dynamic applications.
• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and washdown applications.
• High mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance.
• Precision thread engagement with Class 3A UNC coarse threads ensuring consistent fit and reduced cross-threading risks.
• Easy installation and removal using standard 5/64" hex drive tools, compatible with common industrial equipment.
• Full-threaded design maximizes grip length and distributes stress evenly across the fastener.
• Rounded button head profile provides a low-profile, finished appearance while minimizing snagging hazards.

Professional Applications & Engineering Value

Engineered for demanding industrial fastening scenarios, these nylon patch locking screws deliver reliable vibration resistance in machinery, electronics, and automotive assemblies. The 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for outdoor equipment or chemical-exposed environments. With UNC coarse threads and Class 3A fit, installation is swift and secure, reducing assembly time and preventing thread damage. The hex drive design allows for high-torque application, ensuring tight seals in high-tensile applications. Ideal for securing panels, brackets, and components where permanent thread locking is critical to operational safety and longevity.

Specification Summary & Compliance

This 6-32 x 1/2" screw features a fully threaded UNC coarse thread with Class 3A precision tolerance. Manufactured to meet ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications, ensuring consistent quality and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting sustainable and safe industrial practices.