S-90420A516 Length 1 1/2" 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 requirements with integrated No. 2 drill tip that penetrates up to 0.155" thickness in steel and sheet metal
- Superior corrosion resistance provided by 18-8 stainless steel construction with galvanic-barrier coating for extended service life
- Enhanced holding power through thread forming design that creates strong, permanent threads in parent material
- Quick installation and removal with standard external hex drive compatible with common industrial tools
- Distributed load bearing thanks to integrated flange that provides wider surface contact and prevents pull-through
- Full thread engagement across the entire 1-1/2" length ensures maximum fastening strength in various material thicknesses
- Reliable performance in multiple substrates including steel, stainless steel, and sheet metal applications
Professional Applications & Engineering Value
These flanged hex head tapping screws deliver exceptional value in industrial assembly where corrosion resistance and installation efficiency are critical. The thread forming design eliminates chip formation while creating strong, vibration-resistant threads in parent materials. The galvanic-barrier coated 18-8 stainless steel construction prevents galvanic corrosion when joining dissimilar metals, making these BSD tapping screws ideal for HVAC systems, electrical enclosures, and metal fabrication. The combination of external hex drive for high torque application and integrated drilling tip significantly reduces installation time by eliminating secondary drilling operations in steel and sheet metal up to 0.155" thickness.
Specification Summary & Compliance
This 1/4"-14 x 1-1/2" flanged hex head tapping screw features right-hand threads with approximately 14 threads per inch and complies with BSD tapping screw standards. Manufactured from 18-8 stainless steel with galvanic-barrier coating, the fastener demonstrates excellent dimensional accuracy suitable for industrial applications. The fully threaded design and No. 2 drill tip ensure consistent performance in steel, stainless steel, and sheet metal substrates. These industrial fasteners meet relevant industry standards for material composition and mechanical properties.
