S-95893A376 Length 1/4" Tapping Screws

Tapping Screws

0509FA00091 Tapping Screws
0509FA00091 Tapping Screws

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

Part No.
Part No. 0509FA00091
Equivalent to mcmaster :
95893A376

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
Drive Size T6
Drill Bit Size 5/64"
Drill Bit Diameter 0.0781"
Countersink Angle 82°
Tapping Method Thread Forming

Material & Strength

Material Black-Oxide 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 Black Oxide Steel coating, extending service life in various industrial environments
  • Enhanced torque transmission and reduced cam-out thanks to the T6 Torx drive, ensuring reliable installation and removal
  • Secure, vibration-resistant fastening in plastic materials due to the Tri-Lobe shank design that displaces material to create strong threads
  • Streamlined installation process with fully threaded design and blunt tip, minimizing the risk of material cracking during thread forming
  • Clean, flush finish achieved with the standard 82° flat head profile, ideal for applications requiring a smooth surface
  • Consistent, high-strength performance with 28 threads per inch, providing excellent holding power in plastic substrates
  • Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries

Professional Applications & Engineering Value

These No. 2 x 1/4" TRS tapping screws are specifically engineered for plastic fastening applications, where traditional screws may strip threads or cause stress fractures. The thread forming action of the Tri-Lobe shank cold-forms mating threads in plastic, eliminating chips and providing superior resistance to vibration loosening. Made from durable Black Oxide Steel, they offer enhanced corrosion protection in humid or demanding environments. The T6 Torx drive ensures maximum torque transfer, reducing tool slippage and assembly errors. Ideal for electronics enclosures, automotive trim, and consumer products, these screws deliver reliable performance while meeting strict RoHS and REACH compliance requirements for industrial use.

Specification Summary & Compliance

This thread forming screw features a No. 2 size with 1/4" length in the inch system, fully threaded with 28 TPI right-hand threads. It includes a standard flat head with 82° countersink angle and T6 Torx drive. Manufactured to precise dimensional standards for reliable performance in plastic materials. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets.

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