S-90380A283 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastics thanks to the thread-forming Tri-Lobe shank design, which creates strong, permanent threads without pre-tapping.
• Enhanced corrosion resistance provided by the zinc-plated steel construction, ensuring long-term durability in various industrial environments.
• Efficient and secure installation with the Phillips No. 2 drive, offering good torque transfer and reducing the risk of cam-out during assembly.
• Optimized for plastic materials with a blunt tip and fully threaded body, preventing material cracking and ensuring a reliable, vibration-resistant fastening.
• Precision fit and reduced assembly time as it is designed for use with a standard No. 33 drill bit (0.113" diameter), ensuring correct hole sizing.
• Broad industrial compliance by meeting RoHS 3 and REACH regulations, making it suitable for use in regulated and environmentally conscious applications.
• Versatile pan head design with a standard rounded profile for a low-profile finish and increased bearing surface, suitable for a wide range of plastic components.

Professional Applications & Engineering Value

This zinc-plated steel TRS tapping screw is engineered to address common fastening challenges in plastic assemblies. Its thread-forming Tri-Lobe shank displaces material to create robust, high-strip-resistant threads, effectively eliminating the need for pre-tapped holes and reducing assembly steps and costs. The blunt tip and controlled thread form minimize stress concentration and the risk of plastic cracking or boss failure, a critical advantage in brittle polymer applications. Combined with the corrosion-resistant zinc plating, this Phillips drive screw delivers reliable, long-lasting performance in electronics enclosures, automotive trim, consumer appliances, and other industrial plastic components, ensuring joint integrity under vibration and thermal cycling.

Specification Summary & Compliance

This screw conforms to TRS (Thread Rolling Screw) specifications with a No. 5 size and 5/8" length. It features a 0.125" thread diameter with approximately 20 threads per inch and a fully threaded Tri-Lobe shank cross-section. The pan head has a diameter of 0.245" and a height of 0.089". It is designed for use with a No. 33 drill bit (0.113" diameter). The product is manufactured to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant.