S-90033A344 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide steel coating for extended service life in demanding industrial environments
• Superior thread-forming capability with A/AB thread design creates permanent, vibration-resistant connections in sheet metal
• Optimal flush mounting with 82° countersink angle and flat head design for smooth, professional finishes
• Maximum holding power through fully threaded design ensuring consistent grip along the entire fastener length
• Efficient installation with No. 3 Phillips drive providing secure tool engagement and reduced cam-out risk
• Precision compatibility with 3/16" drill bits and 0.025" maximum drilling thickness for standardized sheet metal applications
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

These No. 12 Phillips flat head tapping screws deliver exceptional engineering value in sheet metal applications where vibration resistance and permanent fastening are critical. The black-oxide steel construction provides superior corrosion protection, while the A/AB thread forming design eliminates the need for pre-tapped holes, reducing installation time and labor costs. The 82° countersink angle ensures flush mounting in standard sheet metal profiles, preventing snagging and maintaining aerodynamic surfaces. With fully threaded configuration and 0.216" thread diameter, these screws distribute clamping force evenly, preventing material distortion in thin-gauge metals. Ideal for HVAC systems, electronic enclosures, and automotive panels, these thread forming screws solve common industrial challenges of loose connections and thread stripping in repetitive stress environments.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.412" head diameter, 1-1/2" length, and 14 threads per inch configuration. Features standard flat head profile with right-hand threading and pointed tip for easy starting. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial reliability. The thread forming tapping method creates strong, permanent threads without generating chips, making these screws ideal for clean-room environments and electrical applications where debris contamination must be avoided.