S-90203A636 Length 1" Tapping Screws

Tapping Screws

0479FA00027 Tapping Screws
0479FA00027 Tapping Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0479FA00027
Equivalent to mcmaster :
90203A636

Basic Information

System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.492"
Head Height 0.175"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 1"
Shank Cross Section Round

Thread Parameters

Screw Size 1/4"
Thread Diameter 0.25"
Approximate Threads per Inch 14
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Drilling
Drive Style Square
Drive Size No. 3
Drill Tip Type No. 3
Drill Tip Length 5/16"
Tapping Method Thread Forming

Material & Strength

Material 18-8 Stainless Steel

Temperature & Environment

For Use In Aluminum, Sheet Metal

Installation & Application

Maximum Drilling Thickness 0.22"
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
  • Fast delivery
  • Enjoy discounts on bulk purchases
  • Secure Payment
  • Fast Global Shipping

Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
  • Efficient thread forming design creates strong, permanent threads in aluminum and sheet metal without pre-drilling
  • Integrated drilling tip penetrates up to 0.22" thickness, eliminating separate drilling operations and reducing installation time
  • Secure square drive system (No. 3 size) provides excellent torque transmission and prevents cam-out during installation
  • Fully threaded shank ensures maximum grip length and uniform load distribution across the entire fastener
  • Pan head design with rounded profile offers a finished appearance while providing good bearing surface
  • Right-hand threading follows standard installation practices for consistent, reliable fastening

Professional Applications & Engineering Value

These 1/4"-14 thread forming tapping screws deliver exceptional value in sheet metal fabrication and aluminum assembly applications. The 18-8 stainless steel composition provides excellent corrosion resistance, making these fasteners ideal for outdoor equipment, electrical enclosures, and HVAC systems where environmental exposure is a concern. The combination of thread forming technology and integrated drilling tip eliminates the need for separate tapping operations, significantly reducing labor costs and assembly time. The square drive system ensures reliable torque transmission without stripping, while the fully threaded design maintains consistent clamping force across the entire joint. These sheet metal screws are engineered to create strong, vibration-resistant connections in materials up to 0.22" thickness, providing durable fastening solutions for industrial manufacturing and metalworking applications.

Specification Summary & Compliance

These tapping screws feature precision 1/4"-14 thread with right-hand direction and fully threaded design. The fasteners maintain standard dimensional tolerances for consistent performance and include a No. 3 square drive for secure installation. Manufactured from 18-8 stainless steel, these screws meet industry standards for corrosion resistance and mechanical properties. The pan head design with standard rounded profile and 0.492" head diameter provides optimal bearing surface. These fasteners are compliant with RoHS and REACH environmental regulations, ensuring they meet current industry compliance requirements for industrial and commercial applications.

🔍
Cancel