S-90935A135 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel coating for extended service life in demanding environments
• Efficient thread-forming design creates strong, permanent threads in sheet metal without requiring pre-tapped holes
• Excellent driving control with Phillips No. 1 drive style and pan head profile for secure installation
• Maximum thread engagement through fully threaded design ensures superior holding power in thin materials
• Precision sizing compatibility with No. 44 drill bit (0.086") for optimal performance in sheet metal up to 0.025" thickness
• Reliable industrial compliance meeting RoHS 3 and REACH environmental standards for safe usage
• Optimized for sheet metal applications with A/AB thread forming type and pointed tip for easy starting

Professional Applications & Engineering Value

These No. 4-24 thread forming screws are specifically engineered to address common challenges in sheet metal fabrication and assembly. The black-oxide steel construction provides exceptional corrosion protection, making these tapping screws ideal for applications where environmental exposure is a concern. The thread forming design eliminates the need for costly tapping operations while creating stronger, more reliable threads that resist loosening under vibration. With their fully threaded configuration and precise 0.112" thread diameter, these Phillips pan head screws deliver maximum pull-out resistance in thin-gauge materials. The combination of right-hand threading and pointed tip ensures quick, straightforward installation, reducing assembly time and labor costs in industrial settings.

Specification Summary & Compliance

These inch-system fasteners feature precision No. 4-24 thread sizing with standard thread tolerances for consistent performance. Manufactured as A/AB type tapping screws with pan head style and Phillips drive, they comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The screws are designed for use with No. 44 drill bits (0.086" diameter) and are optimized for sheet metal applications up to 0.025" maximum drilling thickness, ensuring reliable fastening performance across industrial applications.