S-90821A510 Length 3" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Eliminates pre-drilling operations with integrated No. 3 drill tip that penetrates up to 0.187" thickness in aluminum and sheet metal
- Superior corrosion resistance provided by galvanic barrier coated 18-8 stainless steel construction for extended service life
- Enhanced installation efficiency through thread-forming BSD design that creates stronger threads in ductile materials
- Secure fastening with positive drive enabled by external hex head design for high-torque applications
- Eliminates need for separate washers with integrated flange that distributes clamping force evenly
- Full-length threading ensures maximum grip length and holding power throughout the fastener
- Environmental compliance assurance with RoHS 3 (2015/863/EU) compliance for regulated applications
Professional Applications & Engineering Value
This No. 12-14 self-drilling screw delivers exceptional value in aluminum and sheet metal fabrication by addressing critical installation challenges. The 18-8 stainless steel base material with galvanic barrier coating provides dual-layer protection against galvanic corrosion when fastening dissimilar metals. The thread-forming BSD design creates precise, strong threads without chip removal, eliminating the risk of metal shavings in sensitive assemblies. With a maximum drilling thickness of 0.187" and fully threaded 3" length, this flanged hex head tapping screw streamlines assembly processes while maintaining structural integrity in demanding industrial environments.
Specification Summary & Compliance
This No. 12-14 x 3" self-drilling screw features precision 0.216" thread diameter with 14 threads per inch in right-hand thread direction. The external hex drive (0.313" head width) and integrated flange (0.432" diameter) ensure reliable installation. Manufactured to BSD tapping screw standards with Class 2A thread tolerances and full compliance with RoHS 3 (2015/863/EU) environmental regulations for hazardous substance restriction.
