S-95635A675 M4 x 16 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
- Enhanced tamper resistance with specialized hex drive design to prevent unauthorized access in secure installations
- Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment for extended service life
- Reliable thread engagement with Class 6g tolerance and coarse pitch ensuring secure fastening in vibration-prone environments
- Optimized head profile featuring rounded button design that provides smooth surface finish while maintaining high torque capability
- Exceptional mechanical strength delivering 80,000 psi tensile strength and Rockwell B96 hardness for demanding applications
- Full-thread coverage along the 16mm length enables maximum grip and load distribution across connected materials
- Regulatory compliance meeting ASTM F879M specifications while adhering to RoHS 3 and REACH environmental standards
Professional Applications & Engineering Value
These M4 metric screws with tamper-resistant hex drive address critical security and durability challenges in industrial settings. The combination of 18-8 stainless steel material and passivated finish creates a robust barrier against corrosive elements, making them ideal for outdoor equipment, electronic enclosures, and machinery subjected to harsh environments. The rounded head design minimizes protrusion while the specialized drive system deters tampering in public access areas, security panels, and maintenance hatches. With coarse threading and precise Class 6g thread fit, these fasteners provide rapid installation and reliable performance in vibration-intensive applications where loosening prevention is paramount.
Specification Summary & Compliance
Manufactured to exact metric dimensions with M4 x 0.7mm thread specification and 16mm length, these screws maintain Class 6g thread tolerance for consistent fit. The fully threaded design ensures complete engagement while the 5/32" tamper-resistant hex drive provides secure installation. Compliance includes ASTM F879M manufacturing standards, RoHS 3 (2015/863/EU) environmental directive, and REACH (EC 1907/2006) chemical safety regulations, guaranteeing suitability for international industrial applications and quality assurance requirements.
