S-91306A657 M3 x 8 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 strength rating and 140,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance through zinc-plated alloy steel construction, extending service life in demanding environments
• Optimized thread engagement with coarse 0.5 mm pitch and Class 6g fit ensuring secure fastening and vibration resistance
• Easy installation and removal with hex drive design providing positive torque transmission and reduced tool slippage
• Space-efficient rounded head profile offering a low-profile finish while maintaining full bearing surface contact
• Full thread coverage along the entire 8 mm length for maximum grip strength and load distribution
• Industry compliance assurance meeting international standards for quality and environmental regulations

Professional Applications & Engineering Value

These M3 metric screws with Class 10.9 strength rating and zinc-plated alloy steel construction provide engineering solutions for demanding industrial applications where vibration resistance and long-term reliability are critical. The fully threaded design with coarse 0.5 mm pitch ensures maximum holding power in materials prone to stripping, while the rounded head with hex drive offers flush mounting capabilities with efficient torque application. Particularly valuable in industrial machinery, automotive assemblies, and electronic enclosures, these fasteners address common challenges of joint integrity maintenance under dynamic loads and harsh environmental conditions. The Rockwell C32 hardness combined with the protective zinc plating creates a balanced combination of strength and corrosion protection, making them ideal for applications requiring repeated disassembly and reassembly without performance degradation.

Specification Summary & Compliance

This M3 x 0.5 mm x 8 mm fastener features Class 6g thread fit tolerance and fully threaded construction per metric standards. Manufacturing complies with ISO 7380 specifications for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility and industrial suitability.