S-90935A251 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel coating for extended service life in harsh industrial environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping requirements
• Optimized Phillips Pan Head provides reliable driving performance and sits flush for clean finished appearances
• Full threading with pointed tip ensures quick starts and smooth penetration through materials up to 0.025" thickness
• Precision No. 10-12 thread configuration delivers excellent holding power in sheet metal applications
• Comprehensive regulatory compliance meets RoHS 3 and REACH standards for global manufacturing requirements
• Standardized drill bit compatibility with No. 21 size (0.159" diameter) simplifies installation and reduces tooling costs

Professional Applications & Engineering Value

These Black-Oxide Steel Phillips Pan Head Tapping Screws are engineered specifically for demanding sheet metal applications where reliability and installation efficiency are critical. The thread forming design (A/AB type) eliminates the need for separate tapping operations by creating precise, strong threads directly in the base material. This right-hand threaded configuration with 12 threads per inch provides exceptional pull-out resistance while the fully threaded construction ensures maximum engagement throughout the material thickness. The black-oxide surface treatment offers superior protection against corrosion in industrial environments, making these tapping screws ideal for HVAC systems, electronic enclosures, automotive components, and metal fabrication projects where vibration resistance and long-term performance are essential.

Specification Summary & Compliance

These precision No. 10 tapping screws feature a 0.19" thread diameter with Class 2A thread tolerances and are manufactured to industry-standard specifications for thread forming applications. The screws are designed for use with No. 21 drill bits (0.159" diameter) and accommodate maximum drilling thickness of 0.025". Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial and commercial applications worldwide.