S-90517A270 M5 x 12 mm ASTM F879M Tamper-Resistant Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with specialized 5/32" hex drive that prevents unauthorized removal in high-security applications
• Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment for extended service life in harsh environments
• Maximum holding power with fully threaded design and Class 6g thread fit ensuring precise, vibration-resistant connections
• Reliable mechanical performance delivering 80,000 psi tensile strength and Rockwell B96 hardness for demanding industrial applications
• Optimized flush installation featuring standard 90° countersink angle and flat head profile for smooth, unobtrusive surface finishing
• Industry compliance assurance meeting ASTM F879M specifications while maintaining RoHS 3 and REACH environmental standards
• Precision metric threading with M5 x 0.8mm coarse pitch for quick installation and superior engagement in various materials

Professional Applications & Engineering Value

These M5 flat head tamper-resistant screws provide critical security solutions where standard fasteners would compromise system integrity. The 18-8 stainless steel composition combined with passivated finish creates exceptional resistance to oxidation and chemical exposure, making them ideal for outdoor equipment, marine components, and industrial machinery operating in corrosive environments. The tamper-resistant hex drive specifically addresses vulnerability concerns in public access areas, transportation systems, and secured enclosures where unauthorized tampering poses significant risks. With fully threaded M5 x 0.8mm coarse pitch design, these metric screws ensure maximum thread engagement and pull-out resistance while the 90° countersink angle permits flush mounting in precision applications requiring smooth surface profiles.

Specification Summary & Compliance

Manufactured to exacting metric dimensions including M5 thread size, 0.8mm pitch, and 12mm length with Class 6g thread fit tolerance. Complies with ASTM F879M specification for stainless steel metric machine screws and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. Features right-hand threading with coarse spacing and standard flat head profile engineered for industrial fastening requirements.