S-91675A311 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with 410 Stainless Steel construction for reliable performance in demanding industrial environments
• Superior holding power thanks to the flanged design that distributes clamping force evenly across sheet metal surfaces
• Efficient installation with external hex drive providing maximum torque transfer and reduced tool slippage
• Optimized thread engagement featuring 18 TPI thread density and thread forming design for secure fastening in sheet metal
• Full-length threading ensures consistent grip strength along the entire 3/8" length for maximum fastening reliability
• Precision compatibility with No. 32 drill bit (0.116" diameter) for accurate hole preparation and secure thread formation
• Regulatory compliance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

These No. 6 flanged tapping screws deliver exceptional engineering value in sheet metal applications where vibration resistance and long-term reliability are critical. The thread forming design creates strong, permanent threads in pre-drilled holes without generating chips, making them ideal for electrical enclosures, HVAC systems, and metal fabrication. The 410 Stainless Steel composition provides excellent strength and moderate corrosion resistance, while the external hex drive ensures high torque capability during installation. The combination of 18 TPI thread density and fully threaded pointed tip allows for rapid installation and superior pull-out resistance in materials up to 0.025" thickness, addressing common challenges of fastener loosening and material fatigue in industrial settings.

Specification Summary & Compliance

This thread forming screw features precise dimensional accuracy with 0.138" thread diameter and 3/8" length, designed as a Type A/AB tapping screw for right-hand threading applications. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. Engineered for use with No. 32 drill bits (0.116" diameter), these screws provide reliable performance in standard sheet metal fastening applications with maximum drilling thickness of 0.025".