S-91613A438 6-32 x 1/2" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel and passivated finish, ideal for harsh environments like marine and chemical processing
• Enhanced durability and strength with 100,000 psi tensile strength and Rockwell B100 hardness, reducing failure risks in demanding applications
• Precise, reliable fastening due to Class 2A thread fit and UNC coarse threads, ensuring consistent engagement and vibration resistance
• Optimized head design with a high, narrow fillister profile and slotted drive, providing improved torque application and a flush installation
• Full threading along the 1/2" length for maximum grip and uniform load distribution across the entire fastener
• Compliance with industry standards including ASME B18.6.3, RoHS 3, and REACH, ensuring safety and regulatory acceptance in global markets
• Right-hand coarse threading for quick assembly and disassembly, boosting efficiency in maintenance and production lines

Professional Applications & Engineering Value

This 316 stainless steel rounded head screw is engineered to address critical challenges in industrial settings where corrosion, high stress, and regulatory compliance are paramount. The combination of 316 stainless steel material and a passivated finish provides exceptional resistance to chemicals, moisture, and salt spray, making it ideal for marine equipment, food processing machinery, and pharmaceutical installations. The high, narrow fillister head with a slotted drive allows for secure torque transmission and a low-profile fit, reducing snagging in confined spaces. Fully threaded with 6-32 UNC coarse threads, it ensures robust holding power in metals and plastics, minimizing loosening under dynamic loads. By meeting ASME B18.6.3 specifications, it delivers consistent dimensional accuracy, streamlining assembly processes and enhancing the longevity of critical assemblies.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including a Class 2A thread fit for reliable interchangeability and UNC coarse threading (6-32 size) with a diameter of 0.138". It is manufactured in compliance with ASME B18.6.3 for mechanical and dimensional consistency. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in environmentally sensitive and regulated industries.