S-90286A303 Length 2 1/2" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior holding power with 0.432" flange diameter distributing load evenly across sheet metal surfaces
- Efficient thread forming design creates strong, permanent threads in sheet metal without chip removal
- Quick installation with external hex/slotted drive providing multiple tool engagement options
- Full 2-1/2" threading ensures maximum engagement depth for enhanced pull-out resistance
- Pre-engineered compatibility with standard 3/16" drill bits for simplified installation planning
- Environmental compliance meeting RoHS 3 and REACH standards for global industrial applications
- Pointed tip design facilitates precise starting and alignment during sheet metal assembly
Professional Applications & Engineering Value
These No. 12-11 thread forming tapping screws are engineered specifically for demanding sheet metal applications where vibration resistance and long-term reliability are critical. The Type A thread forming design displaces material rather than cutting it, creating stronger threads that resist loosening under dynamic loads. The flanged hex head provides a wider bearing surface that prevents pull-through in thin gauge materials while the external hex drive allows for high torque application with standard industrial tools. These fully threaded screws maintain consistent holding strength throughout their entire 2-1/2" length, making them ideal for HVAC systems, electrical enclosures, and industrial equipment where sheet metal thickness varies.
Specification Summary & Compliance
Manufactured to precise inch system standards with 0.216" thread diameter and 11 threads per inch configuration. Features right-hand threading with fully threaded shank and pointed tip for optimal penetration. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial markets. Designed for use with standard 3/16" drill bits and suitable for sheet metal applications requiring maximum drilling thickness of 0.025".
