S-94629A180 Length 1/4" Tapping Screws

Tapping Screws

0517FA00008 Tapping Screws
0517FA00008 Tapping Screws

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

Part No.
Part No. 0517FA00008
Equivalent to mcmaster :
94629A180

Basic Information

Tapping Screw Type 25/BT
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 1/4"
Shank Cross Section Round

Thread Parameters

Screw Size No. 6
Thread Diameter 0.138"
Approximate Threads per Inch 20
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Phillips
Drive Size No. 2
Drill Bit Size No. 31
Drill Bit Diameter 0.12"
Tapping Method Thread Cutting

Material & Strength

Material 410 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 410 stainless steel construction for long-lasting performance in demanding environments
  • Efficient thread cutting design with 20 TPI and blunt tip for clean, secure fastening in plastic materials without pre-tapping
  • Optimized drive engagement through Phillips No. 2 drive style preventing cam-out and ensuring reliable installation
  • Maximum thread engagement with fully threaded design providing consistent holding power along the entire fastener length
  • Streamlined assembly process using standard No. 31 drill bit (0.12" diameter) for precise hole preparation
  • Enhanced material compatibility with pan head design distributing clamping force evenly across plastic surfaces
  • Regulatory compliance assurance meeting RoHS 3 and REACH standards for global market acceptance

Professional Applications & Engineering Value

This thread cutting screw specifically engineered for plastic applications addresses critical assembly challenges in industrial manufacturing. The 410 stainless steel construction provides essential corrosion resistance while the 20 TPI thread cutting design creates precise mating threads in plastic substrates without causing material stress cracks. The Phillips pan head configuration offers excellent drive stability during installation, while the fully threaded right-hand pattern ensures maximum pull-out resistance. These self-tapping screws eliminate the need for separate tapping operations, significantly reducing assembly time and labor costs in plastic fastening applications across electronics enclosures, automotive components, and consumer products manufacturing.

Specification Summary & Compliance

This No. 6 x 1/4" thread cutting screw features standard inch measurements with 0.138" thread diameter and Class 2A thread tolerances. The tapping screw type 25/BT designation confirms optimized performance for plastic materials. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for international industrial applications. The screw is designed for use with No. 31 drill bit (0.12" diameter) following standard plastic fastening practices.

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