S-91900A660 3/8"-16 x 2" ASME B18.3 Tamper-Resistant Torx Stainless Steel Button Head Screws
Tamper-Resistant Torx Stainless 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
- Tamper-resistant T45 Torx drive prevents unauthorized access and removal, enhancing equipment security in public or high-risk environments.
- 18-8 stainless steel construction offers excellent corrosion resistance and durability, ideal for harsh industrial or outdoor applications.
- Class 3A thread fit with UNC coarse threading ensures precise, reliable engagement and faster installation in a wide range of materials.
- 70,000 psi tensile strength and Rockwell B70 hardness provide high mechanical strength and wear resistance for long-term, heavy-duty use.
- Passivated finish enhances the natural corrosion resistance of stainless steel, extending service life in corrosive conditions.
- Fully threaded design allows for maximum grip and holding power along the entire length of the screw.
- Rounded button head profile offers a low-profile, finished appearance while reducing the risk of snagging or injury.
Professional Applications & Engineering Value
This tamper-resistant Torx screw is engineered to address critical security and reliability challenges in industrial settings. The 18-8 stainless steel material, combined with a passivated finish, ensures long-term performance in environments exposed to moisture, chemicals, or varying temperatures—effectively preventing rust and degradation. The T45 drive and specialized head design deter tampering, making these security screws ideal for securing access panels, machinery guards, and public infrastructure where unauthorized entry is a concern. With a coarse UNC thread and Class 3A fit, installation is quick and secure, reducing assembly time while maintaining high clamp load. These features make it a trusted choice for OEMs and maintenance teams in manufacturing, transportation, and facility management.
Specification Summary & Compliance
This screw meets ASME B18.3 specifications for dimensional accuracy and performance. Threading conforms to UNC 3/8"-16 with a Class 3A thread fit for superior tolerance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and safe for use in regulated markets.
