S-98903A308 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Optimized torque transfer through No. 2 Phillips drive design, reducing tool slippage and installation time
• Secure flush mounting with 82° countersink angle and undercut flat head profile for smooth surface finishes
• Excellent thread retention via thread forming tapping method that creates strong, permanent threads in sheet metal
• Full-length fastening capability with completely threaded shank for maximum holding power across the entire length
• Precision compatibility with No. 21 drill bit (0.159") for accurate hole preparation and reduced installation errors
• Environmental compliance assurance meeting RoHS 3 and REACH standards for sustainable manufacturing operations

Professional Applications & Engineering Value

This No. 10-12 thread forming screw delivers exceptional performance in sheet metal applications where vibration resistance and corrosion protection are critical. The 18-8 stainless steel composition provides inherent strength against chemical exposure and atmospheric conditions, while the thread forming design eliminates the need for separate tapping operations, significantly reducing assembly time and labor costs. The Phillips flat head configuration with 82° countersink angle ensures seamless integration into panels and enclosures, creating professional-grade finishes without protrusions. Particularly valuable for electrical enclosures, HVAC systems, and industrial machinery where 0.025" maximum drilling thickness capability meets common sheet metal gauges, this tapping screw maintains structural integrity through thermal cycling and mechanical stress.

Specification Summary & Compliance

This fastener features precision No. 10-12 thread configuration with 0.19" diameter and 12 threads per inch, designed for optimal engagement in pre-drilled holes. Manufactured to industry standards for tapping screw Type A applications, it maintains consistent dimensional accuracy throughout production. The product fully complies with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements, ensuring environmental responsibility and workplace safety. The fully threaded design with pointed tip facilitates easy starting and smooth installation in various sheet metal thicknesses.