S-90054A170 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Enhanced torque transmission through external hex/slotted drive design, preventing tool slippage during installation
• Reliable thread forming capability creates permanent, vibration-resistant threads in sheet metal without pre-tapping
• Flanged design eliminates need for washers, providing wider bearing surface and faster assembly times
• Precision 16 TPI threading ensures secure fastening and consistent performance across sheet metal applications
• Full threading along 1/2" length maximizes grip range and adjustment flexibility in various material thicknesses
• Comprehensive compliance with RoHS 3 and REACH regulations for safe use in regulated industries

Professional Applications & Engineering Value

These No. 7 zinc-plated steel tapping screws are engineered specifically for sheet metal applications where vibration resistance and material integrity are critical. The thread forming technology creates strong, permanent threads in pre-drilled holes (using No. 30 drill bit) without generating chips, eliminating contamination risks in sensitive assemblies. The flanged design distributes clamping force evenly, preventing material distortion in thin-gauge metals up to 0.025" thickness. The combination of external hex/slotted drive provides installation flexibility for both power tools and manual drivers, while the zinc plating offers essential corrosion protection in industrial environments. These features make them ideal for HVAC systems, electronic enclosures, automotive panels, and machinery guards where reliable, long-lasting fastening is required.

Specification Summary & Compliance

These thread forming tapping screws feature a No. 7 size with 0.151" thread diameter and 16 TPI precision threading, conforming to standard Class 2A thread tolerances for consistent performance. The screws are fully threaded with right-hand direction and pointed tip for easy starting. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring they meet current environmental and safety standards for industrial use. Designed specifically for sheet metal applications with recommended No. 30 drill bit (0.1285" diameter) for proper hole preparation.