S-90096A371 6-32 x 2" ASME B18.6.3, SAE J933 Tapping Screws

Tapping Screws

0491FA00078 Tapping Screws
0491FA00078 Tapping Screws

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

Part No.
Part No. 0491FA00078
Equivalent to mcmaster :
90096A371

Basic Information

Tapping Screw Type F
Screw Features Flanged
System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 1/4"
Head Height 0.118"

Dimensions

Length 2"
Flange Diameter 0.328"
Shank Cross Section Round

Thread Parameters

Thread Type UNC
Thread Size 6-32
Screw Size No. 6
Thread Diameter 0.138"
Thread Spacing Coarse
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style External Hex/Slotted
Drill Bit Size No. 31
Drill Bit Diameter 0.12"
Tapping Method Thread Cutting

Material & Strength

Material Zinc-Plated Steel

Temperature & Environment

For Use In Aluminum, Brass, Cast Iron, Sheet Metal
RoHS Compliant
Specifications Met ASME B18.6.3, SAE J933
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 zinc-plated steel construction, ensuring long-term durability in harsh industrial environments.
  • Effortless installation thanks to the F-type thread cutting design, which eliminates the need for pre-tapped holes in materials like aluminum and sheet metal.
  • High torque transfer capability with an external hex/slotted drive, allowing for secure fastening and reduced tool slippage during assembly.
  • Reliable grip in coarse-thread applications using UNC threading, providing strong holding power in soft metals and cast iron.
  • Enhanced stability and load distribution from the flanged design, minimizing the risk of loosening under vibration or stress.
  • Full threading along the 2" length ensures consistent engagement and maximum fastening strength across the entire shank.
  • Compliance with industry standards including ASME B18.6.3 and RoHS 3, guaranteeing safety and regulatory adherence for professional use.

Professional Applications & Engineering Value

This 6-32 zinc-plated steel tapping screw is engineered to address common challenges in metalworking and assembly, such as material fatigue and installation inefficiency. The F-type thread cutting design allows it to form precise threads directly into materials like aluminum, brass, cast iron, and sheet metal, reducing labor time and eliminating the need for separate tapping operations. Made from robust zinc-plated steel, it offers excellent resistance to corrosion and wear, extending service life in demanding environments. The coarse UNC thread and fully threaded shank ensure rapid insertion and strong retention, while the external hex/slotted drive facilitates high-torque applications without stripping. Ideal for industrial fastening, this screw delivers reliable performance in automotive, machinery, and construction sectors, enhancing productivity and reducing maintenance costs.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a size of 6-32 and features a fully threaded round shank for consistent performance. It meets ASME B18.6.3 specifications, ensuring dimensional accuracy and manufacturing reliability. Additionally, it is RoHS 3 (2015/863/EU) Compliant, supporting environmental and safety regulations for industrial use.

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