S-91900A852 M4 x 12 mm ASTM F879M, ISO 7380 Tamper-Resistant Torx Stainless Steel Button Head Screws
Tamper-Resistant Torx Stainless Steel Button Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced tamper resistance with specialized T15 Torx drive prevents unauthorized removal in high-security environments
- Superior corrosion protection through 18-8 stainless steel construction and passivated finish 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 0.7mm pitch ensuring secure fastening in various materials
- Streamlined installation through fully threaded design and rounded button head profile for flush mounting
- Comprehensive compliance meeting ASTM F879M, ISO 7380, RoHS 3, and REACH standards for global industrial use
- Optimized head design with 7.6mm diameter and 2.18mm height providing low-profile security fastening
Professional Applications & Engineering Value
Engineered for critical security applications, these M4 metric screws address the growing need for tamper-resistant fastening in public infrastructure, industrial equipment, and electronic enclosures. The 18-8 stainless steel material combined with passivated finish creates a robust barrier against corrosive environments, while the tamper-resistant Torx drive (T15 size) prevents unauthorized access without compromising installation efficiency. The fully threaded design with Class 6g thread fit ensures maximum engagement strength in both metallic and composite materials, making these button head screws ideal for applications where vibration resistance and permanent fastening are paramount. Their compliance with international standards guarantees consistent performance across global manufacturing and maintenance operations.
Specification Summary & Compliance
These metric screws feature precise M4 x 0.7mm coarse thread with Class 6g tolerance for optimal fit, manufactured to ASTM F879M and ISO 7380 specifications. The 12mm length and rounded button head profile provide standardized dimensions for consistent application. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and chemical substance restrictions are met for international industrial deployment.
