S-99461A250 Length 5/8" Tapping Screws

Tapping Screws

0503FA00029 Tapping Screws
0503FA00029 Tapping Screws

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

Part No.
Part No. 0503FA00029
Equivalent to mcmaster :
99461A250

Basic Information

Tapping Screw Type TRS
System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.27"
Head Height 0.097"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 5/8"
Shank Cross Section Tri-Lobe

Thread Parameters

Screw Size No. 6
Thread Diameter 0.138"
Approximate Threads per Inch 19
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Phillips
Drive Size No. 2
Drill Bit Size No. 32
Drill Bit Diameter 0.116"
Tapping Method Thread Forming

Material & Strength

Material 18-8 Stainless Steel

Temperature & Environment

For Use In Plastic
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 18-8 stainless steel construction, ideal for humid or chemical environments.
  • Excellent thread-forming capability through TRS tri-lobe shank design, reducing installation torque and preventing plastic cracking.
  • Secure and reliable fastening with fully threaded design and blunt tip, ensuring maximum holding power in plastic materials.
  • Easy installation and removal featuring Phillips No. 2 drive for compatibility with common tools and reduced cam-out risk.
  • Precise fit and reduced preparation time with standardized No. 32 drill bit (0.116" diameter) recommendation for clean, secure holes.
  • Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries.
  • Durable performance in plastic applications due to right-hand thread and 19 TPI design, providing strong, vibration-resistant connections.

Professional Applications & Engineering Value

This No. 6 x 5/8" TRS plastic tapping screw is engineered to address common fastening challenges in plastic assemblies, such as material stress and corrosion. The 18-8 stainless steel offers exceptional durability, while the thread-forming TRS technology with a tri-lobe shank creates strong threads without generating chips, minimizing the risk of plastic fracture. The Phillips drive ensures straightforward installation, and the fully threaded design enhances grip in various plastic types, from automotive components to electronic enclosures. By combining corrosion resistance with reliable self-tapping performance, this screw reduces assembly time and improves long-term reliability in demanding industrial settings.

Specification Summary & Compliance

This screw adheres to standard inch measurements with a thread diameter of 0.138" and 19 threads per inch, ensuring precise fit. It is designed for use with a No. 32 drill bit (0.116" diameter) and features a fully threaded, right-hand thread configuration. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it meets strict environmental and safety standards for industrial applications.

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