S-90286A197 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission with 1/4" external hex drive for reliable fastening in demanding sheet metal applications
• Efficient thread forming capability creates permanent, vibration-resistant threads without requiring pre-tapped holes
• Enhanced load distribution through 0.348" flange diameter that eliminates the need for separate washers
• Optimized penetration with pointed tip design that reduces installation effort and prevents material displacement
• Maximum thread engagement with full threading along the entire 3/4" length for superior holding strength
• Precision compatibility with No. 29 drill bits (0.136" diameter) for clean, accurate hole preparation
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This No. 8-15 thread forming tapping screw delivers exceptional performance in sheet metal assemblies where reliable fastening is critical. The A Type thread forming design creates strong, permanent threads through material displacement rather than cutting, eliminating chips and ensuring vibration resistance in dynamic applications. The external hex head with 1/4" drive provides superior torque transmission compared to Phillips or slotted drives, reducing cam-out and installation time. The integrated flange design distributes clamping force evenly across the material surface, preventing pull-through in thin gauge metals. With 15 threads per inch and fully threaded construction, this screw maintains consistent engagement throughout the entire fastener length, making it ideal for HVAC systems, electrical enclosures, and automotive panels where joint integrity is paramount.

Specification Summary & Compliance

This thread forming tapping screw features precision No. 8-15 UNC threads with 0.164" diameter and 3/4" length, designed for use with No. 29 drill bits (0.136" diameter). The hex head measures 1/4" across flats with 0.141" height, providing optimal tool engagement. Manufactured to industry standards for Type A thread forming screws, this product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial applications.