S-90935A320 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance through Black-Oxide Steel coating, extending service life in demanding industrial environments
• Efficient thread forming technology creates strong, permanent threads in sheet metal without chip removal
• Optimized Phillips drive design (No. 3 size) ensures secure tool engagement and reduces cam-out during installation
• Full threading along 1-1/2" length provides maximum grip and holding power throughout the entire fastener
• Precision pan head profile offers excellent bearing surface while maintaining low-profile appearance
• Right-hand threading with 11 TPI configuration delivers reliable, consistent fastening performance
• Comprehensive regulatory compliance meets RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These No. 12 tapping screws are specifically engineered for sheet metal applications where traditional fastening methods fall short. The thread forming design eliminates the need for pre-tapped holes, creating stronger threads by displacing material rather than removing it. This results in superior pull-out resistance and vibration-proof connections in sheet metal assemblies. The Black-Oxide Steel construction provides essential corrosion protection for industrial environments, while the Phillips pan head design ensures flush mounting and reliable drive engagement. With their 0.216" thread diameter and 11 threads per inch, these A/AB tapping screws deliver optimal performance in metal thicknesses up to 0.025", making them ideal for HVAC systems, electrical enclosures, and machinery panels where durability and reliability are critical.

Specification Summary & Compliance

These thread forming screws feature precision Class 2A thread tolerances with a 0.216" thread diameter and 11 threads per inch configuration. The fasteners comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for industrial applications. Designed for use with 3/16" drill bits (0.1875" diameter), these fully threaded screws provide consistent performance across their entire 1-1/2" length, meeting industry standards for sheet metal fastening applications.