S-91900A856 M5 x 12 mm ASTM F879M, ISO 7380 Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced security protection with tamper-resistant T25 Torx drive, preventing unauthorized access in sensitive installations
• Superior corrosion resistance through 18-8 stainless steel construction and passivated finish for long-term reliability in harsh environments
• Optimized thread engagement with Class 6g thread fit and coarse pitch ensuring secure fastening in various materials
• Maximum load distribution from the rounded button head design, reducing surface damage while maintaining sleek profile
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B96 hardness for heavy-duty applications
• Full-threaded convenience allowing complete engagement along the entire 12 mm length for superior holding power
• Global compliance assurance meeting international standards including ASTM F879M and ISO 7380 for consistent performance

Professional Applications & Engineering Value

These M5 metric screws with tamper-resistant Torx drive provide critical security solutions for industrial equipment, public infrastructure, and electronic enclosures where unauthorized tampering poses significant risks. The 18-8 stainless steel material combined with passivated finish delivers exceptional resistance to corrosion, chemicals, and environmental factors, ensuring long-term reliability in manufacturing facilities, outdoor installations, and marine applications. The fully threaded design with Class 6g thread fit guarantees maximum engagement strength in metals, plastics, and composite materials, while the rounded head profile minimizes protrusion concerns in space-constrained assemblies. Engineered to maintain integrity under vibration and thermal cycling, these security screws offer peace of mind for critical fastening applications across multiple industries.

Specification Summary & Compliance

This M5 x 0.8 mm pitch x 12 mm length fastener features Class 6g thread tolerance with right-hand coarse threading according to metric standards. Manufacturing specifications strictly adhere to ASTM F879M and ISO 7380 requirements, ensuring dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) for hazardous substance restrictions and REACH (EC 1907/2006) regulations regarding chemical safety, making it suitable for global industrial distribution and environmentally conscious applications.