S-90056A196 Length 5/8" Tapping Screws

Tapping Screws

0448FA00021 Tapping Screws
0448FA00021 Tapping Screws

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

Part No.
Part No. 0448FA00021
Equivalent to mcmaster :
90056A196

Basic Information

Tapping Screw Type B
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 5/8"
Shank Cross Section Round

Thread Parameters

Screw Size No. 8
Thread Diameter 0.164"
Approximate Threads per Inch 18
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Phillips
Drive Size No. 2
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
RoHS Compliant
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.
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
  • Efficient thread forming capability with Type B design creates strong, permanent threads in sheet metal without pre-tapping
  • Optimized driving performance through Phillips No. 2 drive system prevents cam-out and ensures secure installation
  • Maximum thread engagement with fully threaded design provides superior holding power across the entire fastener length
  • Enhanced load distribution from pan head profile creates wider bearing surface for improved clamping force
  • Precision blunt tip design allows for easier starting and reduces material displacement during installation
  • Environmental compliance assurance with RoHS 3 certification for safe, regulated industrial use

Professional Applications & Engineering Value

Engineered specifically for sheet metal applications, these No. 8-18 thread forming screws deliver exceptional performance where traditional fasteners fall short. The zinc-plated steel construction provides critical corrosion protection in manufacturing environments, while the Type B thread forming technology eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs. The Phillips No. 2 drive system ensures reliable torque transfer without stripping, and the fully threaded blunt tip design minimizes material stress during insertion. These tapping screws are ideal for HVAC systems, electrical enclosures, automotive panels, and industrial equipment where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This No. 8-18 x 5/8" tapping screw features precision 0.164" thread diameter with 18 threads per inch and standard Class 2A thread tolerances. The fastener utilizes Type B thread forming technology with blunt tip design optimized for use with No. 29 drill bits (0.136" diameter). Manufacturing complies with industry-standard thread forming specifications and carries full RoHS 3 (2015/863/EU) compliance certification, ensuring environmental regulation adherence for global industrial applications.

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