S-99461A150 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in demanding environments
• Excellent holding power in plastic materials through advanced thread forming design that creates strong, permanent threads
• Reliable installation and reduced cam-out with Phillips No. 1 drive system for consistent torque application
• Enhanced anti-rotation capability featuring tri-lobe shank design that prevents screw back-out in plastic assemblies
• Optimized for plastic applications with blunt tip and fully threaded design for secure fastening without material damage
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards for safe industrial use worldwide
• Precision engineering with standardized pan head profile for consistent performance and easy installation

Professional Applications & Engineering Value

This No. 4 x 3/4" stainless steel tapping screw delivers exceptional engineering value for plastic assembly applications where reliability and corrosion resistance are paramount. The 18-8 stainless steel construction provides superior durability against environmental factors, while the thread forming (TRS) design creates strong, permanent threads in plastic materials without generating chips or debris. The tri-lobe shank cross-section ensures positive locking action, preventing screw rotation and maintaining clamp force in vibration-prone environments. With its Phillips No. 1 drive and pan head configuration, this fastener offers efficient installation in automated assembly processes and manual applications alike. Ideal for electronics enclosures, automotive plastic components, and consumer products requiring secure plastic fastening with regulatory compliance for industrial safety standards.

Specification Summary & Compliance

This tapping screw features precision 0.112" thread diameter with 20 threads per inch and 3/4" length for consistent performance in plastic applications. Manufactured to industry standards with thread forming (TRS) tapping method and right-hand threading. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial suitability. Designed for use with No. 37 drill bit (0.104" diameter) for optimal hole preparation in plastic materials.