S-95893A805 Length 1/4" Tapping Screws

Tapping Screws

0508FA00160 Tapping Screws
0508FA00160 Tapping Screws

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

Part No.
Part No. 0508FA00160
Equivalent to mcmaster :
95893A805

Basic Information

Tapping Screw Type TRS
System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.312"
Head Height 0.1"
Flat Head Profile Standard

Dimensions

Length 1/4"
Shank Cross Section Tri-Lobe

Thread Parameters

Screw Size No. 8
Thread Diameter 0.164"
Approximate Threads per Inch 16
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Torx Plus
Drive Size IP15, T15
Drill Bit Size No. 23
Drill Bit Diameter 0.154"
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 IP15 drive that minimizes cam-out for reliable installation and reduced tool wear
  • Excellent corrosion resistance thanks to 18-8 Stainless Steel construction, ensuring long-term durability in harsh environments
  • Secure plastic fastening through TRS thread forming design that creates strong, vibration-resistant threads without chips
  • Flush mounting capability with standard 82° countersink angle and flat head profile for smooth, professional finishes
  • Enhanced driving stability from tri-lobe shank cross-section that prevents rotation in plastic substrates
  • Regulatory compliance assurance with RoHS 3 and REACH standards for safe use in industrial applications
  • Precision installation guidance with recommended No. 23 drill bit (0.154") for optimal thread formation in plastic materials

Professional Applications & Engineering Value

These No. 8 TRS flat head tapping screws deliver exceptional performance in plastic fastening applications where reliability and corrosion resistance are critical. The 18-8 Stainless Steel construction provides superior protection against environmental factors, while the thread forming design eliminates the risk of plastic cracking by displacing material rather than removing it. The Torx Plus IP15 drive system ensures maximum torque transfer with minimal slippage, making these screws ideal for high-volume assembly operations in electronics enclosures, automotive components, and industrial equipment. The tri-lobe shank design creates interference that prevents back-out under vibration, maintaining joint integrity in demanding environments where plastic-to-plastic or plastic-to-metal connections require permanent, secure fastening solutions.

Specification Summary & Compliance

This No. 8 x 1/4" TRS flat head tapping screw features precision right-hand threads with 16 TPI and fully threaded design for maximum engagement. Manufactured to exacting standards with standard 82° countersink angle and blunt tip for optimal performance in plastic materials. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components. Designed for use with No. 23 drill bit (0.154" diameter) to ensure proper hole preparation and optimal thread formation in plastic substrates.

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