S-95893A605 Length 3/8" Tapping Screws

Tapping Screws

0508FA00148 Tapping Screws
0508FA00148 Tapping Screws

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

Part No.
Part No. 0508FA00148
Equivalent to mcmaster :
95893A605

Basic Information

Tapping Screw Type TRS
System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.212"
Head Height 0.067"
Flat Head Profile Standard

Dimensions

Length 3/8"
Shank Cross Section Tri-Lobe

Thread Parameters

Screw Size No. 4
Thread Diameter 0.112"
Approximate Threads per Inch 20
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Torx Plus
Drive Size IP8, T8
Drill Bit Size No. 37
Drill Bit Diameter 0.104"
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
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
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Key Features & Benefits at a Glance

  • Superior holding power in plastic with Tri-Lobe shank design and thread forming technology that displaces material without creating chips
  • Excellent corrosion resistance provided by 18-8 Stainless Steel construction for long-term reliability in various environments
  • Enhanced torque transmission and reduced cam-out with Torx Plus IP8 drive system for more efficient installation and fewer stripped fasteners
  • Clean, flush installation with standard 82° flat head profile that sits neatly in countersunk holes
  • Environmental compliance assurance meeting RoHS 3 and REACH standards for responsible manufacturing
  • Optimized for plastic assembly with right-hand thread forming design that creates strong, permanent threads in plastic materials
  • Full-length threading provides consistent grip along the entire 3/8" length for maximum fastening security

Professional Applications & Engineering Value

This No. 4-20 TRS flat head tapping screw delivers exceptional engineering value for plastic assembly applications where traditional fasteners fail. The 18-8 Stainless Steel construction ensures corrosion resistance in demanding environments, while the Tri-Lobe shank cross-section and thread forming technology solve critical plastic fastening challenges by creating strong, chip-free threads that won't loosen under vibration. The Torx Plus IP8 drive system provides superior torque transfer compared to conventional drives, reducing installation time and preventing damage to plastic components. With its standard 82° countersink angle and fully threaded design, this screw ensures flush mounting and maximum holding power in plastic enclosures, electronic housings, and industrial plastic assemblies where reliability is paramount.

Specification Summary & Compliance

This inch system fastener features a No. 4-20 thread size with 20 threads per inch and 3/8" length, manufactured to precise dimensional standards for consistent performance. The screw utilizes thread forming (TRS) technology with Tri-Lobe shank design, requiring a No. 37 drill bit (0.104" diameter) for proper installation. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial applications while maintaining high quality and reliability standards.

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