S-94155A092 Length 1/2" Tapping Screws

Tapping Screws

0407FA00002 Tapping Screws
0407FA00002 Tapping Screws

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

Part No.
Part No. 0407FA00002
Equivalent to mcmaster :
94155A092

Basic Information

Tapping Screw Type A/AB
System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.219"
Head Height 0.086"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 1/2"
Shank Cross Section Round

Thread Parameters

Screw Size No. 4
Thread Diameter 0.112"
Approximate Threads per Inch 24
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Pointed
Drive Style Square
Drive Size No. 0
Drill Bit Size No. 44
Drill Bit Diameter 0.086"
Tapping Method Thread Forming

Material & Strength

Material 18-8 Stainless Steel

Temperature & Environment

For Use In Sheet Metal
REACH Compliant
RoHS Compliant

Installation & Application

Maximum Drilling Thickness 0.025"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-lasting performance in harsh industrial environments.
  • Efficient thread forming design creates strong, secure threads in sheet metal without pre-tapping, reducing installation time and labor costs.
  • Optimized for 0.086" drill bits and 0.025" maximum drilling thickness, providing precise compatibility and reliable fastening in thin sheet metal applications.
  • Secure square drive (No. 0) offers excellent torque transmission and reduces cam-out risk during installation.
  • Fully threaded shank ensures maximum grip and uniform load distribution along the entire fastener length.
  • Pan head with rounded profile provides a low-profile, finished appearance while accommodating standard driving tools.
  • Compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets international standards for industrial use.

Professional Applications & Engineering Value

These Type A/AB thread forming tapping screws are engineered specifically for sheet metal applications, where traditional fastening methods often lead to stripped threads or material failure. The 18-8 stainless steel composition provides exceptional resistance to rust and corrosion, making these screws ideal for outdoor equipment, HVAC systems, and electronic enclosures exposed to moisture. The thread forming technology displaces material rather than cutting it, creating stronger threads with improved fatigue resistance and vibration loosening prevention. With right-hand threading and fully threaded design, they ensure consistent clamping force across the entire joint, critical for maintaining structural integrity in industrial sheet metal fastening where reliability is paramount.

Specification Summary & Compliance

This No. 4-24 x 1/2" tapping screw features standard inch measurements with a thread diameter of 0.112" and approximately 24 threads per inch. The screw follows standard thread forming specifications for Type A/AB tapping screws, ensuring proper engagement in sheet metal up to 0.025" thickness. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. The combination of precise dimensional control and environmental compliance makes these fasteners suitable for global industrial applications requiring both performance and regulatory adherence.

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