S-99461A957 Length 20 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-term reliability in demanding environments
• Excellent thread retention through TRS thread forming design that creates strong, permanent threads in plastic materials
• Optimized installation efficiency with Phillips No. 1 drive providing secure tool engagement and reduced cam-out risk
• Enhanced load distribution from the pan head design that offers a larger bearing surface for improved clamping force
• Maximum holding power with full threading and 1.57mm pitch ensuring superior pull-out resistance in plastic assemblies
• Precision compatibility with No. 34 drill bit (0.111") for proper hole preparation and optimal thread formation
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for global industrial applications

Professional Applications & Engineering Value

These M3.5 thread forming screws deliver exceptional engineering value for plastic assembly applications where traditional fastening methods often fail. The TRS thread forming technology eliminates the need for tapping operations while creating strong, vibration-resistant threads that won't strip or loosen under stress. Manufactured from 18-8 stainless steel, these screws provide excellent corrosion resistance critical for industrial environments and outdoor applications. The Phillips drive system ensures reliable installation with standard tools, while the pan head design offers optimal clamping force distribution across plastic surfaces. These metric tapping screws are engineered specifically for plastic substrates where superior pull-out strength and long-term reliability are paramount for product performance and durability.

Specification Summary & Compliance

These M3.5 x 20mm fully threaded screws feature precision metric thread forming with 1.57mm pitch and blunt tip design for controlled installation. The fasteners maintain dimensional accuracy suitable for industrial applications and are manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental responsibility and regulatory acceptance for global markets. Proper installation requires No. 34 drill bit (0.111" diameter) for optimal thread formation and holding performance in plastic materials.