S-91870A312 M3 x 16 mm ASTM F879M Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with specialized Torx T10 drive prevents unauthorized access in sensitive applications
• Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment
• Maximum holding power achieved through full threading and Class 6g thread fit for reliable fastening
• High mechanical strength with 80,000 psi tensile strength and Rockwell B96 hardness for demanding environments
• Precision flat head design ensures flush mounting with standard 90° countersink angle
• Regulatory compliance meets ASTM F879M specifications while being RoHS 3 and REACH compliant
• Optimized metric dimensions with M3 x 0.5 mm coarse thread and 16 mm length for consistent performance

Professional Applications & Engineering Value

These M3 flat head screws with tamper-resistant Torx drive provide critical security solutions for industrial equipment, electronic enclosures, and public infrastructure where unauthorized access poses significant risks. The 18-8 stainless steel material combined with passivated finish delivers exceptional corrosion resistance in harsh environments, while the fully threaded design and Class 6g thread fit ensure maximum engagement and vibration resistance. The flat head profile with standard 90° countersink angle allows for seamless surface integration, making these metric security fasteners ideal for applications requiring both aesthetic cleanliness and robust protection against tampering. Their compliance with international standards guarantees consistent performance across global manufacturing operations.

Specification Summary & Compliance

This M3 x 0.5 mm pitch metric screw features Class 6g thread tolerance with coarse thread spacing and right-hand threading. Manufacturing specifications conform to ASTM F879M standards, ensuring dimensional accuracy and mechanical properties. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making them suitable for international markets and environmentally conscious applications. The combination of precise 16 mm length and standardized flat head dimensions (6.7 mm diameter, 1.9 mm height) ensures compatibility with standard metric fastener systems.