S-90517A360 M8 x 16 mm ASTM F879M Tamper-Resistant Hex Drive Flat Head Screws
Tamper-Resistant Hex Drive Flat 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 resistance with specialized hex drive design to prevent unauthorized access in secure applications
- Superior corrosion protection through 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
- High-strength performance delivering 80,000 psi tensile strength and Rockwell B96 hardness for reliable, vibration-resistant fastening
- Precision thread engagement with Class 6g fit and coarse 1.25mm pitch ensuring quick installation and secure holding power
- Optimized flat head design with 90° countersink angle for flush mounting and clean aesthetic finish
- Full threading coverage along the 16mm length provides maximum grip and load distribution across the entire fastener
- Regulatory compliance assurance meeting ASTM F879M, RoHS 3, and REACH standards for quality and environmental safety
Professional Applications & Engineering Value
This M8 flat head tamper-resistant hex screw addresses critical security and durability challenges in industrial settings. The 18-8 stainless steel material combined with passivated finish creates a robust barrier against corrosion, making it ideal for outdoor equipment, marine applications, and chemical processing facilities where moisture and corrosive agents are present. The tamper-resistant hex drive (3/16") specifically counters unauthorized tampering in public infrastructure, electrical enclosures, and transportation systems. The fully threaded metric design with coarse 1.25mm pitch ensures rapid installation and maintains clamping force under vibration, while the flat head profile provides a smooth, flush surface that eliminates protrusions in machinery and architectural applications.
Specification Summary & Compliance
Manufactured to precise metric dimensions including M8 x 1.25mm thread with Class 6g thread fit tolerance, 16mm length, and standard flat head profile. This security screw conforms to ASTM F879M specification for chemical and mechanical properties, and demonstrates compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring both performance reliability and regulatory adherence for industrial procurement.
