S-90055A108 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Exceptional holding power through thread forming technology that creates strong, permanent threads in sheet metal without pre-tapping
• Efficient installation with Phillips drive design providing secure tool engagement and reduced cam-out during high-torque applications
• Flush surface finish achieved with standard flat head profile and 82° countersink angle for smooth, professional-looking installations
• Reliable thread engagement with full threading along the entire 3/8" length for maximum grip and vibration resistance
• Precision compatibility with No. 44 drill bit (0.086" diameter) ensuring proper hole sizing and optimal thread formation
• Environmental compliance meeting RoHS 3 standards for safe use across various industrial applications

Professional Applications & Engineering Value

These Type B thread forming screws deliver exceptional performance in sheet metal applications where reliable fastening is critical. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength. The thread forming technology eliminates the need for pre-tapped holes, reducing installation time and labor costs. The fully threaded design ensures maximum contact surface area, providing superior resistance to vibration loosening and mechanical stress. The 82° countersink angle and flat head profile create seamless finishes in assembly operations, making these tapping screws ideal for HVAC systems, electronic enclosures, and automotive components where both structural integrity and aesthetic appearance matter.

Specification Summary & Compliance

Manufactured to precise dimensional standards with No. 4-24 thread specification (0.112" diameter, 24 TPI) and 3/8" length. Features right-hand threading and standard flat head profile with Phillips No. 1 drive. Designed for use with No. 44 drill bit (0.086" diameter) and compliant with RoHS 3 (2015/863/EU) environmental regulations. The thread forming Type B design ensures consistent performance across various sheet metal thicknesses and materials.