S-90356A339 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black Oxide 18-8 Stainless Steel construction, ideal for humid or chemically aggressive industrial settings
• Enhanced thread engagement through fully threaded design and pointed tip, ensuring secure fastening in sheet metal applications
• Efficient installation with Phillips No. 3 drive, providing reliable torque transfer and reducing tool slippage during assembly
• Optimized for sheet metal using thread forming (Type A/AB) method, creating strong threads without pre-tapping and minimizing material stress
• Consistent dimensional accuracy with 0.216" thread diameter and 11 threads per inch, delivering predictable performance across production runs
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards, ensuring safety and environmental responsibility in global supply chains
• Versatile compatibility with 3/16" drill bits and maximum 0.025" drilling thickness, simplifying integration into existing assembly processes

Professional Applications & Engineering Value

This Black Oxide 18-8 Stainless Steel tapping screw delivers exceptional value in sheet metal fabrication and industrial assembly where corrosion resistance and structural integrity are paramount. The thread forming design eliminates chip formation during installation, preventing contamination in sensitive environments while creating permanent, vibration-resistant connections. The fully threaded configuration maximizes pull-out strength in thin-gauge materials, addressing common failure points in HVAC systems, electrical enclosures, and automotive components. With its Phillips pan head providing a low-profile bearing surface, this fastener maintains consistent clamping force without protruding, making it ideal for applications where space constraints and aesthetic considerations matter alongside mechanical performance.

Specification Summary & Compliance

Manufactured to precise inch-system dimensions including No. 12 screw size, 1-1/2" length, and 0.216" thread diameter with 11 TPI. Features standard Class 2A thread tolerances for reliable interchangeability. The thread forming (Type A/AB) tapping method conforms to industry standards for sheet metal fastening. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance adherence for global industrial applications.