S-90286A255 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior thread forming capability creates permanent, vibration-resistant threads in sheet metal without chips or debris
• Integrated flange design eliminates need for separate washers while providing enhanced load distribution
• External hex head configuration delivers high torque transmission for secure fastening in confined spaces
• Precision No. 21 drill bit compatibility ensures optimal hole preparation for maximum material thickness of 0.025"
• Full threading along 2-1/2" length provides consistent holding power throughout the entire engagement area
• Right-hand thread direction offers standard installation compatibility with conventional driving tools
• Environmental compliance assurance meets RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This No. 10-12 flanged hex head tapping screw delivers exceptional performance in sheet metal fabrication where vibration resistance and permanent fastening are critical. The thread forming Type A design creates strong, precise threads through material displacement rather than cutting, eliminating chip accumulation in sensitive assemblies. The combination of 0.313" hex head and 0.414" flange diameter provides superior clamping force distribution while the external hex drive ensures reliable installation in tight spaces. Engineered for industrial environments, this fully threaded tapping screw maintains integrity under dynamic loads, making it ideal for HVAC systems, electrical enclosures, and machinery where long-term reliability is paramount.

Specification Summary & Compliance

This inch-system fastener features No. 10 screw size with 12 threads per inch and 0.19" thread diameter, manufactured to precise dimensional standards for consistent performance. The thread forming Type A configuration ensures proper engagement in pre-drilled holes using No. 21 drill bit (0.159" diameter) for materials up to 0.025" maximum thickness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions and chemical safety protocols.