S-90065A247 Length 1" Tapping Screws

Tapping Screws

0427FA00066 Tapping Screws
0427FA00066 Tapping Screws

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

Part No.
Part No. 0427FA00066
Equivalent to mcmaster :
90065A247

Basic Information

Tapping Screw Type A
System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.362"
Head Height 0.116"
Flat Head Profile Standard

Dimensions

Length 1"
Shank Cross Section Round

Thread Parameters

Screw Size No. 10
Thread Diameter 0.19"
Approximate Threads per Inch 12
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Pointed
Drive Style Phillips
Drive Size No. 2
Drill Bit Size No. 21
Drill Bit Diameter 0.159"
Countersink Angle 82°
Tapping Method Thread Forming

Material & Strength

Material 18-8 Stainless Steel

Temperature & Environment

For Use In Sheet Metal
REACH Compliant
RoHS Compliant

Installation & Application

Maximum Drilling Thickness 0.025"
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 18-8 stainless steel construction, ensuring long-term reliability in demanding industrial environments.
  • Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing assembly time and labor costs.
  • Precise 82° countersink angle allows for flush mounting in standard sheet metal applications, providing a clean, professional finish.
  • Fully threaded shank maximizes grip length and pull-out resistance across the entire 1" length for enhanced joint security.
  • Optimized for 0.159" drill bits and 0.025" maximum drilling thickness, ensuring perfect compatibility with standard sheet metal fabrication processes.
  • No. 2 Phillips drive offers secure tool engagement and reduced cam-out risk during high-torque installation.
  • Environmental compliance with RoHS 3 and REACH regulations, making them suitable for global supply chains and sensitive applications.

Professional Applications & Engineering Value

These Type A thread forming screws are engineered specifically for sheet metal assembly challenges where vibration resistance and material integrity are critical. The 18-8 stainless steel composition provides excellent strength-to-weight ratio while resisting corrosion in industrial environments. The fully threaded design and standard flat head profile create reliable, flush-mounted connections in HVAC systems, electronic enclosures, and automotive components. The thread forming action cold-works the material rather than cutting it, resulting in stronger threads with improved fatigue resistance. With precise 12 threads per inch spacing and pointed tip, these tapping screws start easily and drive smoothly without damaging thin-gauge materials.

Specification Summary & Compliance

These No. 10-12 x 1" tapping screws feature inch system measurements with Class 2A thread tolerances for consistent performance. The Type A thread forming design follows industry standards for sheet metal applications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility. Critical dimensions include 0.362" head diameter, 0.116" head height, and 82° countersink angle for proper seating in prepared holes using No. 21 drill bits.

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