S-90055A294 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Excellent thread-forming capability with Type B design creates permanent, vibration-resistant threads in sheet metal without pre-tapping
• Optimal flush installation with standard 82° flat head profile that sits perfectly countersunk in sheet metal applications
• Enhanced driving efficiency through Phillips No. 2 drive system that prevents cam-out and ensures secure fastening
• Maximum material engagement with fully threaded design providing consistent holding power along the entire 1/2" length
• Precision thread alignment with 18 TPI right-hand threads maintaining Class 2A dimensional accuracy for reliable performance
• Environmental compliance assurance meeting RoHS 3 standards for safe use across regulated industries

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional value in sheet metal fabrication and assembly operations. The thread forming Type B design eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs while creating strong, permanent threads that resist vibration loosening. The 82° countersink angle ensures flush mounting in standard sheet metal applications, preventing snagging and maintaining clean product profiles. With fully threaded construction and 0.164" thread diameter, these screws provide uniform stress distribution and maximum pull-out resistance, making them ideal for HVAC systems, electrical enclosures, automotive components, and industrial machinery where reliable fastening performance is critical.

Specification Summary & Compliance

This No. 8-18 x 1/2" tapping screw features Class 2A thread tolerances with 18 TPI right-hand threads and standard flat head profile. Manufactured to industry standards for thread forming Type B screws with Phillips No. 2 drive compatibility. The product is fully RoHS 3 (2015/863/EU) compliant and meets relevant industrial specifications for sheet metal fastening applications, ensuring regulatory adherence and performance reliability.