S-92750A310 10-32 x 1/2" Tapping Screws

Tapping Screws

0393FA00021 Tapping Screws
0393FA00021 Tapping Screws

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

Part No.
Part No. 0393FA00021
Equivalent to mcmaster :
92750A310

Basic Information

Tapping Screw Type CA
System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.373"
Head Height 0.133"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 1/2"
Shank Cross Section Tri-Lobe

Thread Parameters

Thread Type UNF
Thread Size 10-32
Screw Size No. 10
Thread Diameter 0.19"
Thread Spacing Fine
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Torx
Drive Size T25
Drill Bit Size No. 21
Drill Bit Diameter 0.159"
Tapping Method Thread Forming

Material & Strength

Material Zinc-Plated Steel

Temperature & Environment

For Use In Sheet Metal
REACH Compliant
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Enhanced corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments.
  • Superior torque transmission and reduced cam-out thanks to the T25 Torx drive, allowing for precise installation and minimizing tool slippage.
  • Excellent holding power in sheet metal due to the Tri-Lobe shank design, which forms strong threads without pre-tapping for secure fastening.
  • Reliable fine-thread engagement with UNF 10-32 threading, providing vibration resistance and consistent performance in metal applications.
  • Streamlined installation process with a pan head and fully threaded blunt tip, enabling quick, flush seating and reducing assembly time.
  • Broad compatibility and durability in sheet metal uses, supported by a rounded head profile that distributes load evenly.
  • Compliance with environmental standards, including RoHS 3 and REACH, ensuring safe, sustainable use in global supply chains.

Professional Applications & Engineering Value

These 10-32 x 1/2" zinc-plated steel Torx T25 tapping screws are engineered to address common challenges in sheet metal fastening, such as material fatigue and loosening under stress. The thread-forming Tri-Lobe shank creates tight, permanent threads in pre-drilled holes (using a No. 21 drill bit), eliminating the need for separate tapping and reducing installation steps. Made from zinc-plated steel, they offer robust corrosion resistance, while the UNF fine thread and right-hand direction ensure secure, vibration-resistant joints in industrial equipment, enclosures, and automotive assemblies. This design minimizes strip-out risks and enhances holding power, making them ideal for high-volume production environments where reliability and efficiency are critical.

Specification Summary & Compliance

This product adheres to Class 2A thread tolerances for precise fit, with a UNF fine thread size of 10-32 and fully threaded design. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental safety and regulatory alignment for industrial use.

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