S-90485A250 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in harsh environments
• Exceptional holding power in plastic materials thanks to the Tri-Lobe shank design that prevents loosening and back-out
• Efficient thread forming action creates strong, permanent threads in plastic without pre-tapping requirements
• Optimized drive engagement with Phillips No. 2 drive for reliable installation and reduced cam-out risk
• Flush mounting capability with standard 82° flat head profile for clean, professional finishes
• Full-length threading ensures maximum grip along the entire 1" length for enhanced fastening security
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These No. 6 TRS tapping screws are specifically engineered for plastic fastening applications where vibration resistance and long-term reliability are critical. The 18-8 Stainless Steel composition provides excellent corrosion resistance, making them ideal for outdoor equipment, marine components, and chemical processing environments. The unique Tri-Lobe shank design creates a secure interference fit in plastic substrates, eliminating the need for additional locking mechanisms while preventing material stress cracking. The thread forming action produces clean, strong threads without generating chips or debris, ensuring consistent performance in automated assembly lines. With Phillips drive compatibility and standardized 82° countersink angle, these screws deliver reliable installation across various plastic fabrication and manufacturing operations.

Specification Summary & Compliance

These TRS tapping screws feature precise dimensional specifications including 0.138" thread diameter, 19 threads per inch, and Class 2A thread tolerances for consistent performance. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The screw design follows industry-standard thread forming principles with recommended No. 32 drill bit (0.116" diameter) for optimal hole preparation in plastic materials.