S-90033A334 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Black-Oxide Steel coating for long-lasting performance in demanding industrial environments
• Superior thread-forming capability creates permanent, vibration-resistant threads in sheet metal without pre-tapping requirements
• Optimized 82° countersink angle ensures flush installation and clean finished appearance in sheet metal assemblies
• Reliable Phillips drive design provides secure torque transmission and prevents cam-out during installation
• Precision No. 10-12 thread pitch delivers optimal grip strength and load distribution in thin sheet metal applications
• Partially threaded shank design allows for precise clamping force control and reduced material stress
• Comprehensive regulatory compliance meets RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These Black-Oxide Steel Phillips Flat Head Tapping Screws are engineered specifically for sheet metal applications where reliability and installation efficiency are critical. The thread forming design eliminates the need for separate tapping operations, reducing assembly time and labor costs while creating strong, permanent threads that resist vibration loosening. The 82° countersink angle matches standard sheet metal countersinks for flush mounting, preventing snagging and ensuring smooth surface finishes. The partially threaded configuration provides controlled clamping force, minimizing distortion in thin gauge materials. Ideal for HVAC systems, electronic enclosures, and metal fabrication projects, these tapping screws deliver consistent performance with their No. 10-12 thread pitch and Phillips drive compatibility with standard industrial tools.

Specification Summary & Compliance

These No. 10 tapping screws feature precision Class 2A thread tolerances with a 0.19" thread diameter and 12 threads per inch configuration. The right-hand thread direction and 2-1/2" length with 2" minimum thread length ensure consistent engagement depth. Manufactured to industry standards for sheet metal fasteners with compatibility for No. 21 drill bit size (0.159" diameter). Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental and safety standards in industrial applications.