S-90485A180 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Excellent holding power in plastic due to the thread forming TRS design and Tri-Lobe shank, reducing the risk of stripping and pull-out.
• Efficient installation and flush finish with a standard flat head and 82° countersink angle, providing a smooth surface and streamlined assembly.
• Reliable drive engagement from the No. 1 Phillips drive, minimizing cam-out and ensuring consistent torque application.
• Secure fastening in pre-drilled holes using a No. 44 drill bit (0.086" diameter), ensuring precise fit and optimal thread formation.
• Full-length threading (20 TPI) for maximum grip along the entire 5/8" length, enhancing joint strength in plastic assemblies.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This No. 4 x 5/8" TRS tapping screw is specifically engineered for plastic applications, where traditional fasteners often fail due to material brittleness or low pull-out strength. The 18-8 stainless steel offers inherent corrosion resistance, crucial for outdoor or high-moisture environments. Its thread forming action and Tri-Lobe shank design displace plastic material to create strong, permanent threads without tapping, eliminating chips and reducing assembly steps. The flat head with Phillips drive ensures a flush mount and easy installation, making it ideal for electronics enclosures, automotive trim, and consumer products where aesthetics and durability are paramount. This screw solves common issues like loosening under vibration and chemical degradation, providing a reliable, RoHS and REACH compliant fastening solution that extends product lifespan and reduces maintenance costs.

Specification Summary & Compliance

This screw features a 0.112" thread diameter with 20 TPI and is fully threaded for consistent engagement. It is designed with a standard flat head profile and blunt tip for controlled penetration. Manufactured to precise dimensions, it ensures reliable performance with a recommended No. 44 drill bit (0.086" diameter) for pre-drilling. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, confirming its adherence to environmental and safety regulations for hazardous substance restrictions.