S-90065A308 Length 4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Efficient thread forming technology creates strong, permanent threads in sheet metal without chips or debris
• Optimized 82° countersink angle provides flush mounting and clean finished appearance in metal applications
• Full threading along the 4" length delivers maximum grip strength and load distribution across the entire fastener
• Phillips flat head design allows for easy installation and secure, unobtrusive fastening in sheet metal assemblies
• Precise compatibility with standard 3/16" drill bits (0.1875") for quick, accurate installation in 0.025" maximum thickness materials
• Regulatory compliance assurance with RoHS 3 and REACH standards for safe, environmentally responsible manufacturing

Professional Applications & Engineering Value

These No. 12 x 4" 18-8 stainless steel Phillips flat head tapping screws are engineered specifically for demanding sheet metal applications where reliability and corrosion resistance are critical. The thread forming Type A design eliminates the need for pre-tapped holes while creating strong, vibration-resistant connections that won't loosen under stress. The combination of fully threaded construction and 0.216" thread diameter with 11 threads per inch provides exceptional pull-out strength in thin gauge materials. The 82° countersink angle ensures proper seating in sheet metal while the Phillips drive style offers familiar, efficient installation. These characteristics make these tapping screws ideal for HVAC systems, electrical enclosures, industrial machinery panels, and automotive components where durable, long-lasting fastening solutions are required.

Specification Summary & Compliance

These thread forming Type A tapping screws feature precise dimensional specifications including No. 12 screw size, 4" length, 0.216" thread diameter, and 11 threads per inch. The flat head profile with standard dimensions (0.412" head diameter, 0.132" head height) ensures proper countersinking in sheet metal applications. Manufacturing compliance includes adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental responsibility and material safety standards for industrial use. The right-hand thread direction and pointed tip type facilitate easy starting and smooth thread formation during installation.