S-91900A849 M3 x 12 mm ASTM F879M, ISO 7380 Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced Security with tamper-resistant Torx T8 drive to prevent unauthorized access in sensitive installations
• Superior Corrosion Resistance from 18-8 stainless steel construction with passivated finish for long-term reliability in harsh environments
• Optimized Thread Engagement through Class 6g thread fit and full threading for secure fastening in metric applications
• High Mechanical Strength delivering 80,000 psi tensile strength and Rockwell B96 hardness for demanding industrial loads
• Streamlined Profile with rounded button head design to reduce snagging while maintaining aesthetic appeal
• Regulatory Compliance meeting ASTM F879M, ISO 7380 standards and RoHS 3/REACH requirements for global market acceptance
• Precision Engineering with M3 x 0.5 mm coarse thread configuration for quick installation and vibration resistance

Professional Applications & Engineering Value

These M3 tamper-resistant Torx screws address critical security and durability challenges in industrial settings where standard fasteners fail. The 18-8 stainless steel composition with passivated finish creates a protective oxide layer that withstands corrosive chemicals, moisture, and extreme temperatures - making them ideal for outdoor equipment, electronic enclosures, and medical devices. The Tamper-Resistant Torx T8 drive system prevents vandalism and unauthorized disassembly in public infrastructure and security systems, while the fully threaded metric design ensures maximum clamping force across the entire fastener length. Engineers specify these security screws for applications requiring both tamper-proof characteristics and corrosion resistance, eliminating the need for secondary security components and reducing maintenance cycles.

Specification Summary & Compliance

This metric screw features precise M3 x 0.5 mm coarse threads with Class 6g tolerance for consistent fitment across standard metric applications. Manufacturing adheres to ASTM F879M and ISO 7380 specifications, ensuring dimensional accuracy and performance reliability. The 12 mm length with fully threaded design provides complete engagement in standard material thicknesses. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and unrestricted use in international markets.