S-95635A653 M3 x 12 mm ASTM F879M Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws
Tamper-Resistant Hex-Drive 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 hex drive prevents unauthorized removal, making it ideal for security-sensitive applications.
- 18-8 stainless steel construction offers excellent corrosion resistance, ensuring long-term reliability in harsh environments.
- Passivated finish enhances surface durability and provides an extra layer of protection against oxidation and chemical attack.
- High tensile strength of 80,000 psi and Rockwell B96 hardness deliver robust performance under significant mechanical stress.
- Class 6g thread fit ensures precise, reliable engagement with mating components, reducing the risk of cross-threading.
- Fully threaded design allows for maximum grip and uniform load distribution along the entire fastener length.
- Compliance with ASTM F879M, RoHS 3, and REACH guarantees adherence to international quality, safety, and environmental standards.
Professional Applications & Engineering Value
This M3 metric screw with a 0.5mm coarse pitch and tamper-resistant hex drive is engineered to address critical challenges in industrial and security applications. The 18-8 stainless steel material combined with a passivated finish provides superior resistance to corrosion, making it suitable for outdoor equipment, electronic enclosures, and machinery exposed to moisture or chemicals. The rounded button head design minimizes protrusion, reducing the risk of snagging while maintaining a low profile. With its fully threaded body and Class 6g thread fit, it ensures secure fastening in assemblies where vibration resistance and tamper-proofing are paramount, such as in public infrastructure, medical devices, and access control systems.
Specification Summary & Compliance
This screw features a metric M3 x 0.5mm thread with Class 6g tolerance for precise fit, a length of 12mm, and a rounded button head with a 3/32" tamper-resistant hex drive. It is manufactured in accordance with ASTM F879M specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for global industrial use.
