S-90315A525 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping
• Precision Phillips drive (No. 2) ensures secure installation and reduces cam-out during high-torque applications
• Professional oval head profile provides a flush, finished appearance when seated in 82° countersunk holes
• Optimized for No. 21 drill bit compatibility simplifies installation planning and reduces tooling requirements
• Full 2-1/2" threading delivers maximum grip length and holding power in sheet metal assemblies
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and global market acceptance

Professional Applications & Engineering Value

These No. 10 x 2-1/2" stainless steel tapping screws solve critical fastening challenges in sheet metal fabrication and industrial assembly. The 18-8 stainless steel composition provides exceptional resistance to rust and corrosion, making these Phillips oval head screws ideal for outdoor equipment, HVAC systems, and marine applications. The thread forming design eliminates the need for separate tapping operations, reducing installation time and preventing loose connections in thin-gauge materials. With their 82° countersink angle and standardized No. 21 drill bit compatibility, these screws ensure precise, flush-mounted finishes while maintaining structural integrity under vibration and load stress.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread tolerances and fully threaded No. 10 screw size (0.19" diameter, 12 TPI). These thread forming tapping screws comply with Type A/AB standards for sheet metal applications. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial markets.