S-93880A539 Length 5/8" Tapping Screws

Tapping Screws

0451FA00018 Tapping Screws
0451FA00018 Tapping Screws

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

Part No.
Part No. 0451FA00018
Equivalent to mcmaster :
93880A539

Basic Information

Tapping Screw Type B
Screw Features Flanged
System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 3/8"
Head Height 0.24"

Dimensions

Length 5/8"
Flange Diameter 0.52"
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 Blunt
Drive Style External Hex/Slotted
Drill Bit Size 5.5 mm
Drill Bit Diameter 0.2165"
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
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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
  • High-strength thread forming design creates permanent, vibration-resistant threads in sheet metal without pre-tapping
  • Dual drive compatibility with external hex/slotted head for versatile installation using standard tools
  • Integrated flange design eliminates need for separate washers, providing wider bearing surface and faster assembly
  • Full threading along 5/8" length ensures maximum grip and load distribution throughout the fastened materials
  • Precision blunt tip allows for easier starting and reduced material displacement during installation
  • Environmental compliance with RoHS 3 standards, meeting international regulatory requirements for hazardous substances

Professional Applications & Engineering Value

These zinc-plated steel hex flange tapping screws deliver exceptional performance in sheet metal applications where vibration resistance and long-term reliability are critical. The thread forming design (Type B) creates stronger, more durable threads by displacing material rather than removing it, eliminating chip-related issues in automated assembly lines. The external hex/slotted drive provides flexibility for both power and manual tool applications, while the integrated flange distributes clamping force evenly, preventing material distortion in thin-gauge metals. With full threading and blunt tip configuration, these fasteners ensure consistent engagement depth and reduced installation torque requirements, making them ideal for high-volume manufacturing environments requiring repeatable, reliable fastening solutions.

Specification Summary & Compliance

This 1/4"-14 thread forming screw features precise Class 2A thread tolerances with 14 threads per inch and 0.25" thread diameter. Manufactured to industry standards for Type B tapping screws with right-hand threading and compatible with 5.5mm (0.2165") drill bits. The fastener is fully compliant with RoHS 3 (2015/863/EU) regulations, ensuring environmental responsibility while maintaining heavy-duty performance characteristics for industrial sheet metal fastening applications.

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