S-91870A362 M3.5 x 10 mm ASTM F879M Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with T15 Torx drive prevents unauthorized access in security-critical applications
• Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment
• High-strength performance with 80,000 psi tensile strength and Rockwell B96 hardness for demanding environments
• Precision thread engagement with Class 6g fit and coarse 0.6 mm pitch ensures reliable fastening in industrial assemblies
• Optimal flush mounting with standard 90° countersink angle and flat head design for smooth surface finishes
• Full-thread coverage along the 10 mm length provides maximum grip and load distribution
• Regulatory compliance meets ASTM F879M specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This M3.5 tamper-resistant flat head screw delivers critical security and durability for industrial applications where unauthorized access prevention is paramount. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to corrosion in harsh environments, while the T15 Torx drive ensures only authorized personnel can install or remove these security fasteners. The fully threaded metric design with Class 6g thread fit maintains consistent clamping force in machinery, electronic enclosures, and public infrastructure. Engineered to withstand vibration and mechanical stress, these industrial screws prevent tampering in transportation, telecommunications, and manufacturing equipment where reliability cannot be compromised.

Specification Summary & Compliance

This metric flat head screw features M3.5×0.6 mm coarse threading with Class 6g tolerance for precision fit. Manufacturing complies with ASTM F879M specification for mechanical properties and dimensional accuracy. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) standards for chemical safety. The 90° countersink angle and 8.2 mm head diameter ensure proper seating in standard chamfered holes.