S-92949A322 2-64 x 3/8" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh environments.
- Exceptional thread engagement and reliability due to Class 3A thread fit and UNF fine thread profile, minimizing the risk of loosening.
- High-strength performance under load with a tensile strength of 70,000 psi and Rockwell B55 hardness for demanding applications.
- Secure and efficient installation enabled by the hex drive design, providing positive torque transmission and reducing cam-out.
- Full thread coverage for maximum grip along the entire 3/8" length, ensuring uniform clamping force.
- Compliance with major industrial standards including ASME B18.3, RoHS, and REACH, guaranteeing quality and safety.
- Rounded button head design offers a low-profile, finished appearance while reducing surface damage risks.
Professional Applications & Engineering Value
This 2-64 UNF fine thread screw is engineered for precision assemblies where vibration resistance and material integrity are critical. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it suitable for electronics, aerospace components, and medical devices. The Class 3A thread fit ensures tight tolerances and reliable performance in high-stress environments, while the hex drive allows for high torque application without stripping. Its fully threaded design maximizes holding power across the entire 3/8" length, offering consistent clamping force in compact or sensitive assemblies where failure is not an option.
Specification Summary & Compliance
This screw adheres to Class 3A thread fit per UNF standards, ensuring precise dimensional accuracy. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming its suitability for global industrial use without hazardous substances.
