S-90048A257 Length 3" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and labor costs
• Optimal 82° countersink angle provides flush mounting in sheet metal applications, preventing snagging and improving finished appearance
• Precision Phillips No. 2 drive offers excellent torque transmission and reduces cam-out during installation for consistent fastening results
• Full threading along the 3" length ensures maximum grip strength and uniform stress distribution across the entire fastened joint
• Standard A/AB thread profile delivers reliable performance in various sheet metal thicknesses up to 0.025" drilling capacity
• Environmental compliance assurance with RoHS 3 and REACH standards, meeting global regulatory requirements for industrial applications

Professional Applications & Engineering Value

These No. 10-12 zinc-plated steel tapping screws are engineered specifically for sheet metal fabrication challenges where traditional fasteners fail. The thread forming design eliminates the need for separate tapping operations, significantly reducing assembly time while creating stronger, more reliable threads that won't strip under vibration or load. The Phillips flat head configuration with standard profile ensures seamless integration into metal surfaces, providing a clean finish without protrusions. With 0.19" thread diameter and 12 threads per inch, these screws deliver optimal holding power in thin-gauge materials commonly used in HVAC systems, electrical enclosures, and automotive panels. The combination of zinc-plated corrosion protection and fully threaded engagement makes these industrial fasteners ideal for applications requiring both environmental durability and maximum pull-out resistance.

Specification Summary & Compliance

This No. 10-12 x 3" tapping screw features precision right-hand threads with standard thread forming profile (Type A/AB) and fully threaded construction for consistent performance. The fastener maintains dimensional accuracy with 0.362" head diameter and 0.116" head height, ensuring proper seating in prepared holes. Installation requires No. 21 drill bit (0.159" diameter) for optimal thread engagement in materials up to 0.025" maximum drilling thickness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions and chemical safety in industrial applications.