S-93035A420 Length 5/16" Tapping Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance - Integrated rubber O-ring creates a reliable seal in sheet metal applications, preventing leaks and contamination in demanding environments.
• Excellent Corrosion Resistance - Constructed from 18-8 Stainless Steel to ensure long-term durability and reliability, even in harsh or moist conditions.
• Wide Temperature Tolerance - The sealing O-ring maintains its integrity across a broad temperature range from -40° to 225° F, suitable for various industrial settings.
• Efficient Thread Forming Design - Thread forming tapping method ensures strong, secure fastening in pre-drilled holes without the need for a separate tapping operation, saving assembly time.
• Secure and Easy Installation - Phillips drive (No. 2 size) and pan head design provide a positive grip and flush finish, facilitating quick and stable installation with standard tools.
• Optimized for Sheet Metal - Specifically engineered for use in sheet metal with a recommended No. 32 drill bit (0.116" diameter), ensuring precise fit and reduced risk of material damage.
• Full Thread Engagement - Fully threaded design maximizes holding power and distributes load evenly along the entire screw length for enhanced joint strength.

Professional Applications & Engineering Value

This No. 6-20 thread forming screw is engineered to address common challenges in industrial assembly, particularly in sheet metal applications where sealing and vibration resistance are critical. The 18-8 Stainless Steel construction offers robust corrosion resistance, extending service life in environments exposed to moisture or chemicals. Its thread forming capability eliminates the need for pre-tapped holes, reducing installation steps and minimizing the risk of cross-threading. The inclusion of a rubber O-ring provides an effective seal against dust, moisture, and air leaks, making it ideal for HVAC systems, electronic enclosures, and automotive components. The Phillips pan head design ensures a low-profile, secure fit, while the blunt tip facilitates easy alignment and insertion, enhancing overall assembly efficiency and reliability in industrial sealing fasteners.

Specification Summary & Compliance

This screw features a No. 6-20 thread size with a diameter of 0.138" and approximately 20 threads per inch, ensuring precise fit in pre-drilled holes (recommended drill bit size: No. 32, 0.116" diameter). It adheres to standard right-hand thread direction and is fully threaded for consistent performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms its environmental and safety standards, making it suitable for global industrial use without hazardous substances.