S-91900A145 6-32 x 5/16" ASME B18.3 Tamper-Resistant Torx Stainless Steel Button Head Screws

Tamper-Resistant Torx Stainless Steel Button Head Screws

0204FA00007 Tamper-Resistant Torx Stainless Steel Button Head Screws
0204FA00007 Tamper-Resistant Torx Stainless Steel Button Head Screws

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

Part No.
Part No. 0204FA00007
Equivalent to mcmaster :
91900A145

Basic Information

System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.262"
Head Height 0.073"
Rounded Head Profile Standard
Rounded Head Style Button

Dimensions

Length 5/16"

Thread Parameters

Thread Type UNC
Thread Size 6-32
Thread Diameter 0.138"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Tamper-Resistant Torx
Drive Size T10

Material & Strength

Material 18-8 Stainless Steel
Finish Passivated
Hardness Rockwell B70
Tensile Strength 70000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.3
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 tamper-resistance with Torx T10 drive for secure installations in high-security environments.
  • Superior corrosion resistance from 18-8 Stainless Steel and passivated finish, ideal for harsh or outdoor applications.
  • High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration.
  • Precise Class 3A thread fit provides excellent engagement and reduces the risk of cross-threading.
  • Rounded button head design offers a low-profile, smooth finish that minimizes snagging and improves safety.
  • Full compliance with ASME B18.3 guarantees consistent quality and interchangeability in industrial assemblies.
  • RoHS 3 and REACH compliant for use in regulated industries without environmental or health concerns.

Professional Applications & Engineering Value

This 6-32 UNC thread screw with a tamper-resistant Torx T10 drive is engineered to address critical needs in security and durability. Made from 18-8 Stainless Steel and featuring a passivated finish, it resists rust and chemical exposure, making it ideal for electronics, machinery, and outdoor fixtures. The Class 3A thread fit and coarse thread spacing ensure quick, secure fastening in materials like metal and plastic, reducing assembly time and preventing unauthorized access. Its rounded head style provides a clean, flush installation, essential for applications where protrusions are a hazard. Commonly used in security panels, access controls, and industrial equipment, this screw delivers long-term reliability and compliance with stringent industry standards.

Specification Summary & Compliance

This product features a 6-32 UNC coarse thread with Class 3A fit for precise tolerance, fully threaded for consistent holding power. It meets ASME B18.3 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safety and environmental responsibility. The screw has a Rockwell B70 hardness and 70,000 psi tensile strength, supporting heavy-duty use.

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