S-91306A761 M5 x 40 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 fastening efficiency with fully threaded M5 coarse pitch (0.8mm) design ensuring maximum thread engagement and vibration resistance
• Enhanced installation control featuring 3mm hex drive and rounded button head profile for secure tool engagement and reduced head protrusion
• Precision engineering with Class 6g thread fit and ISO 7380 compliance guaranteeing consistent dimensional accuracy and interchangeability
• Industry-standard compatibility meeting RoHS 3 and REACH environmental regulations for global manufacturing applications
• Robust material properties combining Rockwell C32 hardness with alloy steel core for excellent wear resistance and load-bearing capacity

Professional Applications & Engineering Value

These Class 10.9 metric hex screws deliver critical engineering solutions where high tensile strength and corrosion resistance are paramount. The zinc-plated alloy steel construction provides essential protection against environmental degradation in industrial settings, while the fully threaded M5 x 0.8mm coarse pitch design ensures maximum clamping force distribution across the entire fastener length. The rounded button head profile with 3mm hex drive offers superior installation torque transmission while maintaining a low-profile appearance ideal for machinery, equipment assembly, and structural applications where clearance is limited. Engineered to ISO 7380 standards, these industrial fasteners maintain dimensional consistency across production batches, reducing assembly time and improving manufacturing efficiency in automotive, construction, and heavy equipment industries.

Specification Summary & Compliance

This M5 x 0.8mm x 40mm fastener features Class 6g thread tolerance with coarse thread spacing and fully threaded design per metric standards. Manufacturing complies with ISO 7380 specifications for dimensional accuracy and performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance compliance for global distribution. The Class 10.9 strength rating corresponds to minimum tensile strength of 140,000 psi with Rockwell C32 hardness, validating its heavy-duty application suitability.