S-90517A220 M4 x 10 mm ASTM F879M Tamper-Resistant Hex Drive Flat Head Screws
Tamper-Resistant Hex Drive Flat Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Enhanced tamper-resistance with specialized hex drive design prevents unauthorized access in security-sensitive applications
- Superior corrosion resistance through 18-8 stainless steel construction and passivated finish ensures longevity in harsh environments
- High mechanical strength with 80,000 psi tensile strength and Rockwell B96 hardness withstands demanding industrial loads
- Precision thread engagement with Class 6g metric coarse threads provides reliable fastening performance
- Optimized flush mounting through standard flat head profile and 90° countersink angle for smooth surface finishes
- Full regulatory compliance with ASTM F879M, RoHS 3, and REACH standards ensures quality and environmental safety
- Complete thread coverage along the 10mm length maximizes grip strength and distribution
Professional Applications & Engineering Value
This M4 metric screw with tamper-resistant hex drive addresses critical security and durability challenges in industrial settings. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to corrosion, oxidation, and chemical exposure, making it ideal for outdoor equipment, marine applications, and harsh manufacturing environments. The Class 6g thread fit ensures precise engagement with mating components while the coarse thread pitch (0.7mm) facilitates quicker installation and reduced cross-threading risks. Engineering teams value its fully threaded design for maximum holding power in electronic enclosures, machinery guards, and public infrastructure where security fastening and long-term reliability are paramount.
Specification Summary & Compliance
This flat head screw features M4 x 0.7mm coarse metric threading with Class 6g tolerance for precision fit, 10mm length with full threading, and 90° countersink angle. Manufacturing complies with ASTM F879M specifications for consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
