S-99663A153 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for long-lasting performance in harsh environments
• Enhanced holding power through thread forming technology that creates stronger, vibration-resistant connections in sheet metal
• Dual drive compatibility with external hex/slotted head for flexible installation using standard tools
• Integrated flange design provides wider bearing surface for improved load distribution and reduced material stress
• Full threading ensures maximum grip along the entire screw length for superior fastening security
• Precision sizing with No. 6 diameter and 1/2" length for consistent performance in sheet metal applications
• Environmental compliance meeting RoHS 3 and REACH standards for safe, regulated use in industrial settings

Professional Applications & Engineering Value

These 316 stainless steel flanged tapping screws are engineered specifically for sheet metal applications where corrosion resistance and holding strength are critical. The thread forming technology eliminates the need for pre-tapped holes, creating stronger threads in the base material that resist loosening under vibration and thermal cycling. The combination of external hex/slotted drive provides installation flexibility while the integrated flange distributes clamping force evenly, preventing material deformation in thin gauge metals up to 0.025" thickness. These features make them ideal for HVAC systems, electronic enclosures, automotive components, and industrial equipment exposed to moisture, chemicals, or temperature variations where reliable fastening is essential.

Specification Summary & Compliance

This No. 6 x 1/2" flanged tapping screw features a 0.138" thread diameter with 18 TPI threading and complies with Type A/AB tapping screw standards. The screw is designed for use with No. 32 drill bits (0.116" diameter) and is manufactured to precise dimensional tolerances. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications while maintaining the high performance standards expected from 316 stainless steel fasteners.