S-93035A339 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Reliable leak-proof sealing through integrated rubber O-ring that maintains integrity across -40° to 225° F temperature ranges
• Efficient thread-forming installation with Type B tapping design that creates strong, permanent threads in sheet metal without pre-tapping
• Optimized drive engagement with Phillips No. 1 drive for secure fastening and reduced cam-out risk
• Precision compatibility with standard No. 44 drill bit (0.086" diameter) for streamlined assembly processes
• Full regulatory compliance meeting RoHS 3 and REACH standards for global manufacturing applications
• Complete thread coverage along the 1/2" length ensures maximum holding power in thin materials

Professional Applications & Engineering Value

This 18-8 stainless steel sealing tapping screw addresses critical challenges in sheet metal assembly where both mechanical fastening and environmental protection are required. The thread-forming Type B design eliminates the need for separate tapping operations while creating stronger, more reliable threads than thread-cutting alternatives. The integrated rubber O-ring provides consistent sealing performance against moisture, dust, and air infiltration, making it ideal for HVAC components, electronic enclosures, and outdoor equipment. The Phillips pan head offers a balance of low-profile design and sufficient drive torque capacity, while the fully threaded blunt tip ensures smooth engagement without damaging surrounding materials. These engineering features combine to reduce assembly time, improve product longevity, and prevent costly environmental failures in demanding applications.

Specification Summary & Compliance

This No. 4-24 x 1/2" tapping screw features standard inch measurements with 24 threads per inch and right-hand threading. Manufactured to precise dimensional standards with a 0.219" pan head diameter and 0.068" head height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance. Designed specifically for use with No. 44 drill bits (0.086" diameter) in sheet metal applications.