S-90484A184 6-32 x 1/2" ASME B18.3, ASTM F835 Tamper-Resistant Hex-Drive Steel Button Head Screws
Tamper-Resistant Hex-Drive Steel Button Head 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
- Enhanced tamper-resistant security with a specialized hex drive that deters unauthorized access in public or high-risk environments.
- Superior corrosion resistance from the black-oxide finish, extending service life in humid or industrial settings.
- Exceptional mechanical strength with 130,000 psi tensile strength and Rockwell C39 hardness for reliable performance under heavy loads.
- Precise thread engagement thanks to Class 3A thread fit and UNC coarse threading, ensuring quick assembly and vibration resistance.
- Broad regulatory compliance with ASME B18.3, RoHS 3, and REACH, meeting strict quality and environmental standards.
- Low-profile rounded head design reduces snagging risks and provides a smooth finish for aesthetic-sensitive applications.
- Full threading along the 1/2" length offers maximum grip and adjustability in various material thicknesses.
Professional Applications & Engineering Value
Engineered for demanding industrial and security applications, this black-oxide alloy steel screw combines high tensile strength and tamper-resistant features to address critical challenges like vandalism, vibration loosening, and environmental wear. The UNC coarse thread and Class 3A thread fit enable rapid installation with minimal cross-threading risks, while the rounded head design minimizes protrusion in machinery, electronics, and public infrastructure. Ideal for securing access panels, enclosures, and automotive components, it ensures long-term reliability under dynamic stresses, supported by full compliance with international engineering and safety standards.
Specification Summary & Compliance
This screw adheres to Class 3A thread tolerances for precise fit and is manufactured in accordance with ASME B18.3 specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The product features a right-hand UNC coarse thread with a diameter of 0.138" and is fully threaded for consistent performance across its 1/2" length.
