S-94065A192 Length 3/8" Tapping Screws

Tapping Screws

0421FA00005 Tapping Screws
0421FA00005 Tapping Screws

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

Part No.
Part No. 0421FA00005
Equivalent to mcmaster :
94065A192

Basic Information

Tapping Screw Type A/AB
System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.322"
Head Height 0.096"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 3/8"
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 Drilled Spanner
Drive Size No. 8
Drill Bit Size No. 29
Drill Bit Diameter 0.136"
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
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-lasting performance in harsh industrial environments.
  • Secure, tamper-resistant installation provided by the drilled spanner drive, ideal for applications requiring controlled torque.
  • Efficient thread forming design (Type A/AB) creates strong, durable threads in sheet metal without pre-tapping, reducing assembly time.
  • Optimized for 0.136" drill bits (No. 29), ensuring precise hole preparation and maximum holding power in materials up to 0.025" thick.
  • Full threading and pointed tip for quick, easy starts and consistent engagement across the entire 3/8" length.
  • Reliable right-hand threading with 15 TPI and 0.164" diameter, delivering consistent clamping force in sheet metal assemblies.
  • Compliance with RoHS 3 and REACH regulations, making it safe for use in regulated industries and global supply chains.

Professional Applications & Engineering Value

This No. 8 sheet metal tapping screw is engineered to address common fastening challenges in metal fabrication and assembly. Its 18-8 stainless steel material provides excellent resistance to rust and oxidation, crucial for outdoor or high-moisture environments. The thread forming design eliminates the need for separate tapping operations, reducing labor costs and potential cross-threading issues in sheet metal applications. The drilled spanner drive offers a secure grip for installers, preventing cam-out and ensuring precise torque application in confined spaces. With a 0.322" pan head and fully threaded shank, it distributes clamping force evenly, minimizing sheet distortion and improving joint integrity in HVAC, electronics enclosures, and automotive panels.

Specification Summary & Compliance

This screw features a No. 8-15 UNC thread with a 0.164" diameter and is fully threaded to 3/8" length. It conforms to standard thread forming (Type A/AB) specifications for sheet metal, with a right-hand thread direction. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring it is free of restricted hazardous substances and suitable for industrial and international markets.

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