S-92750A213 8-32 x 1/2" Tapping Screws

Tapping Screws

0393FA00014 Tapping Screws
0393FA00014 Tapping Screws

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

Part No.
Part No. 0393FA00014
Equivalent to mcmaster :
92750A213

Basic Information

Tapping Screw Type CA
System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.322"
Head Height 0.115"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 1/2"
Shank Cross Section Tri-Lobe

Thread Parameters

Thread Type UNC
Thread Size 8-32
Screw Size No. 8
Thread Diameter 0.164"
Thread Spacing Coarse
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Torx
Drive Size T20
Drill Bit Size No. 29
Drill Bit Diameter 0.136"
Tapping Method Thread Forming

Material & Strength

Material Zinc-Plated Steel

Temperature & Environment

For Use In Sheet Metal
REACH Compliant
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
  • Enhanced torque transmission and reduced cam-out thanks to T20 Torx drive design for secure, efficient installation
  • Exceptional holding power in sheet metal achieved through Tri-Lobe shank cross-section that displaces material during thread forming
  • Reliable thread formation without pre-tapping using CA-type thread forming design that creates strong, permanent threads
  • Wide material compatibility with UNC coarse threads (8-32) providing excellent engagement in various sheet metal thicknesses
  • Streamlined installation process with standardized No. 29 drill bit size (0.136") for precise hole preparation
  • Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional performance in sheet metal assembly applications where vibration resistance and permanent fastening are critical. The Tri-Lobe shank design creates a unique thread-forming action that displaces material rather than removing it, resulting in zero chip generation and superior pull-out resistance. The T20 Torx drive system provides higher torque capability compared to traditional drives, reducing installation time and preventing fastener damage. With fully threaded UNC coarse threads and CA-type thread forming technology, these screws eliminate the need for pre-tapped holes while maintaining consistent clamping force in electrical enclosures, HVAC systems, and metal fabrication projects where reliable thread forming screws are essential for structural integrity.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread tolerances and UNC coarse thread specifications (8-32). Features standard pan head style with 0.322" diameter and 1/2" length. Designed for use with No. 29 drill bit (0.136" diameter) in sheet metal applications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial and commercial settings worldwide. Right-hand thread direction with blunt tip and fully threaded design for consistent performance.

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