S-90198A242 Length 7/8" Tapping Screws

Tapping Screws

0428FA00023 Tapping Screws
0428FA00023 Tapping Screws

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

Part No.
Part No. 0428FA00023
Equivalent to mcmaster :
90198A242

Basic Information

Tapping Screw Type A/AB
System of Measurement Inch

Head Parameters

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

Dimensions

Length 7/8"
Shank Cross Section Round

Thread Parameters

Screw Size No. 8
Thread Diameter 0.164"
Approximate Threads per Inch 15
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Pointed
Drive Style Phillips
Drive Size No. 2
Drill Bit Size No. 29
Drill Bit Diameter 0.136"
Countersink Angle 82°
Tapping Method Thread Forming

Material & Strength

Material 316 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 316 stainless steel construction for long-lasting performance in harsh environments
  • Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping
  • Precise 82° countersink angle ensures flush mounting and professional finished appearance
  • Optimized for thin materials with maximum 0.025" drilling thickness capability
  • Reliable Phillips No. 2 drive provides secure installation with standard tools
  • Full threading along 7/8" length delivers maximum grip and holding power
  • Environmental compliance assurance with RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These No. 8 Phillips flat head tapping screws are specifically engineered for demanding sheet metal applications where reliability and corrosion resistance are critical. The 316 stainless steel composition provides exceptional protection against chemical exposure and atmospheric corrosion, making these thread forming screws ideal for marine, chemical processing, and outdoor equipment applications. The flat head profile with standard 82° countersink angle ensures seamless flush mounting while the thread forming design eliminates the need for separate tapping operations, reducing installation time and labor costs. With 15 threads per inch and full threading along the entire 7/8" length, these fasteners deliver superior pull-out resistance and vibration-proof performance in thin-gauge materials.

Specification Summary & Compliance

This No. 8 tapping screw features a 0.164" thread diameter with 15 threads per inch and 7/8" overall length. The Phillips No. 2 drive ensures compatibility with standard industrial tools, while the standard flat head profile with 82° countersink angle provides optimal seating in prepared holes. Manufactured to precise dimensional standards for consistent performance, these screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the strictest international standards for hazardous substance restrictions.

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