S-90935A187 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel coating, extending service life in demanding industrial environments
• Efficient thread forming capability creates permanent, vibration-resistant threads in sheet metal without pre-tapping
• Optimized drive engagement with Phillips No. 2 drive prevents cam-out and ensures secure installation
• Quick-start pointed tip facilitates precise alignment and reduces installation time in production settings
• Full threading design provides maximum grip length and uniform stress distribution along the entire fastener
• Standard pan head profile offers low-profile installation with excellent bearing surface for consistent clamping force
• Regulatory compliance assurance meets RoHS 3 and REACH standards for global manufacturing applications

Professional Applications & Engineering Value

These black-oxide steel tapping screws deliver exceptional performance in sheet metal fabrication and assembly operations. The thread forming design (Type A/AB) displaces material rather than removing it, creating stronger threaded connections that resist loosening under vibration. The combination of fully threaded construction and pointed tip enables rapid installation while maintaining precise alignment in automated assembly lines. The Phillips pan head configuration provides reliable drive transfer and a clean finished appearance, making these screws ideal for HVAC systems, electrical enclosures, and automotive components where vibration resistance and corrosion protection are critical engineering requirements.

Specification Summary & Compliance

This No. 8 x 1/4" tapping screw features a 0.164" thread diameter with 15 threads per inch in right-hand orientation. Manufactured to precise dimensional standards with Class 2A thread tolerances, the screw is compatible with No. 29 drill bits (0.136" diameter) for optimal performance in materials up to 0.025" maximum thickness. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for international industrial applications and supply chain requirements.