S-91870A570 M8 x 30 mm ASTM F879M Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with specialized T45 drive design to prevent unauthorized access in high-security environments
• Superior corrosion resistance through 18-8 stainless steel construction and passivated surface treatment for extended service life
• Reliable mechanical performance with 80,000 psi tensile strength and Rockwell B96 hardness for demanding applications
• Precision thread engagement with Class 6g fit and coarse 1.25mm pitch ensuring secure fastening in various materials
• Streamlined installation featuring fully threaded design and standard flat head profile for flush mounting
• Industry compliance assurance meeting ASTM F879M specifications for consistent quality and performance
• Environmental regulation adherence with RoHS 3 and REACH compliance for sustainable manufacturing practices

Professional Applications & Engineering Value

This M8 flat head tamper-resistant Torx screw delivers critical security and durability for industrial applications where unauthorized access poses significant risks. The combination of 18-8 stainless steel material and passivated finish provides exceptional corrosion resistance in harsh environments, while the T45 tamper-resistant drive system prevents casual tampering in public facilities, transportation equipment, and secured enclosures. The metric coarse thread with Class 6g tolerance ensures reliable engagement in both metallic and composite materials, making it ideal for industrial fastening applications requiring both security and structural integrity. The fully threaded design distributes clamping force evenly, reducing the risk of loosening under vibration or thermal cycling conditions.

Specification Summary & Compliance

This security screw features M8 x 1.25mm coarse thread with Class 6g tolerance and 30mm length, manufactured to precise dimensional standards. The fastener complies with ASTM F879M specifications for mechanical properties and performance requirements. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance compliance for international markets. The 90° countersink angle and flat head profile maintain proper seating in standard recessed applications.