S-90065A020 Length 1/4" Tapping Screws

Tapping Screws

0427FA00003 Tapping Screws
0427FA00003 Tapping Screws

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

Part No.
Part No. 0427FA00003
Equivalent to mcmaster :
90065A020

Basic Information

Tapping Screw Type AB
System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.112"
Head Height 0.035"
Flat Head Profile Standard

Dimensions

Length 1/4"
Shank Cross Section Round

Thread Parameters

Screw Size No. 0
Thread Diameter 0.06"
Approximate Threads per Inch 48
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Pointed
Drive Style Phillips
Drive Size No. 0
Drill Bit Size No. 55
Drill Bit Diameter 0.052"
Countersink Angle 82°
Tapping Method Thread Forming

Material & Strength

Material 18-8 Stainless Steel

Temperature & Environment

For Use In Sheet Metal
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, ideal for harsh environments and long-term reliability
  • Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time
  • Precise 82° countersink angle ensures flush mounting with standard sheet metal surfaces for clean, professional finishes
  • Fine 48 TPI thread pitch provides excellent grip and vibration resistance in thin materials up to 0.025" thickness
  • Full threading along entire 1/4" length maximizes holding power and allows for adjustable positioning during assembly
  • Phillips flat head design offers secure driving control and sits flush to prevent snagging and improve safety
  • Environmental compliance assurance with RoHS 3 certification for use in regulated industries and global markets

Professional Applications & Engineering Value

These No. 0 Phillips Flat Head Tapping Screws deliver exceptional performance in sheet metal applications where material integrity and corrosion resistance are critical. The 18-8 Stainless Steel composition provides inherent protection against rust and chemical exposure, while the thread forming (AB Type) design eliminates the need for separate tapping operations - the screw creates its own perfectly matched threads as it's driven. This combination prevents material stress cracking common in thin gauge metals and ensures consistent clamping force. The 82° countersink angle matches standard sheet metal preparations for seamless integration, and the fully threaded configuration maintains holding strength even when adjustments are needed. These features make them ideal for electronics enclosures, HVAC components, automotive panels, and other precision metal assemblies requiring reliable, vibration-resistant fastening solutions.

Specification Summary & Compliance

These precision tapping screws feature a No. 0 screw size with 0.06" thread diameter and 48 TPI fine threads in right-hand direction. The 1/4" length provides optimal engagement for materials up to 0.025" maximum drilling thickness, compatible with No. 55 drill bit (0.052" diameter). Manufactured to AB Type thread forming standards with standard flat head profile and Phillips No. 0 drive. Fully compliant with RoHS 3 (2015/863/EU) environmental regulations for hazardous substance restriction.

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