S-90053A291 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Excellent thread-forming capability creates strong, permanent threads in sheet metal without requiring pre-tapped holes
• Optimized holding power with 11 threads per inch design that maximizes engagement and prevents loosening under vibration
• Easy installation and removal with standard slotted drive pan head that accommodates common tools while providing a low-profile finish
• Precise dimensional accuracy with Class 2A thread tolerances ensuring consistent performance and interchangeability
• Full-length threading along the entire 1/2" length provides maximum grip and distribution of clamping forces
• Compliance with environmental regulations including RoHS 3 and REACH for safe use in regulated industries

Professional Applications & Engineering Value

These No. 12 thread forming tapping screws are specifically engineered to address common challenges in sheet metal fabrication and assembly. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength for reliable fastening in HVAC systems, electrical enclosures, and automotive components. The thread forming design eliminates the need for separate tapping operations, reducing installation time and labor costs while creating strong, strip-resistant threads that maintain integrity under vibration and thermal cycling. The pan head with slotted drive offers a versatile solution for applications requiring flush mounting and accessibility with standard tools. With compatibility for 3/16" drill bits and capability to drill through up to 0.025" thickness, these screws streamline production processes while delivering consistent, high-performance results in industrial metalworking applications.

Specification Summary & Compliance

These tapping screws feature precision Class 2A thread tolerances with 0.216" thread diameter and 11 threads per inch in accordance with standard industrial specifications. The A/AB thread forming type ensures reliable performance in sheet metal applications up to 0.025" thickness. Manufactured to meet RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations, these fasteners are suitable for use in environmentally conscious manufacturing environments while maintaining consistent quality and performance standards.