S-99663A228 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for extended service life in harsh environments
• Maximum torque application through combined external hex/slotted drive design for secure installation
• Reliable thread forming capability creates strong, permanent threads in sheet metal without chips or debris
• Full threading along 1-1/2" length ensures consistent holding power throughout the entire fastener
• Integrated flange design provides wider bearing surface for improved load distribution
• Optimized for 0.136" drill bit size with precise No. 8-15 thread specification for accurate fit
• Environmental compliance assurance with RoHS 3 and REACH regulations for global industrial applications

Professional Applications & Engineering Value

These 316 stainless steel hex head tapping screws deliver exceptional performance in demanding sheet metal applications where corrosion resistance and structural integrity are paramount. The thread forming design eliminates the need for separate tapping operations, creating strong, vibration-resistant threads that won't loosen under stress. The combination of external hex and slotted drive provides versatility for both high-torque power tools and manual installation methods. Engineered with 15 TPI thread pitch and 0.164" thread diameter, these fasteners offer superior pull-out strength in materials up to 0.025" maximum drilling thickness, making them ideal for HVAC systems, electronic enclosures, and industrial equipment where reliable fastening in thin-gauge metals is critical.

Specification Summary & Compliance

This No. 8-15 x 1-1/2" tapping screw features precise thread forming (Type A/AB) design with fully threaded configuration and pointed tip for easy starting. Manufactured to exacting standards with 0.348" flange diameter and 0.141" head height for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets while maintaining the exceptional corrosion resistance properties of 316 stainless steel.