S-95893A550 Length 1/4" Tapping Screws

Tapping Screws

0508FA00145 Tapping Screws
0508FA00145 Tapping Screws

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

Part No.
Part No. 0508FA00145
Equivalent to mcmaster :
95893A550

Basic Information

Tapping Screw Type TRS
System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.162"
Head Height 0.051"
Flat Head Profile Standard

Dimensions

Length 1/4"
Shank Cross Section Tri-Lobe

Thread Parameters

Screw Size No. 2
Thread Diameter 0.086"
Approximate Threads per Inch 28
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Torx Plus
Drive Size IP6, T6
Drill Bit Size No. 47
Drill Bit Diameter 0.0785"
Countersink Angle 82°
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 torque transmission with Torx Plus IP6 drive, reducing cam-out and tool wear for reliable installation.
  • Excellent corrosion resistance from 18-8 Stainless Steel, ensuring long-term durability in various environments.
  • Secure fastening in plastic materials due to the Tri-Lobe shank design, which minimizes stress and prevents loosening.
  • Efficient thread forming that creates strong, permanent threads without pre-tapping, saving time and labor costs.
  • Flush mounting capability with a standard flat head and 82° countersink angle for a clean, professional finish.
  • Environmental compliance with RoHS 3 and REACH standards, meeting strict regulatory requirements for safe use.
  • Precise installation guidance using a No. 47 drill bit (0.0785" diameter) for optimal hole preparation and screw performance.

Professional Applications & Engineering Value

This TRS tapping screw is engineered to address common challenges in plastic assembly, such as material cracking and thread stripping. The thread forming design with a Tri-Lobe shank displaces plastic material to create robust, high-holding threads, reducing the risk of failure in dynamic applications. Made from 18-8 Stainless Steel, it offers reliable corrosion resistance, ideal for outdoor or humid environments. The Torx Plus IP6 drive ensures maximum torque transfer, minimizing slippage during installation in automated or manual processes. Commonly used in electronics, automotive, and consumer goods, this screw provides a secure, vibration-resistant fastening solution that enhances product longevity and reduces maintenance needs.

Specification Summary & Compliance

This screw adheres to inch system measurements with a No. 2 size, 1/4" length, and 28 TPI for precise fit. It features a right-hand thread, fully threaded design, and blunt tip for controlled insertion. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it meets environmental and safety standards without hazardous substances.

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