S-91306A739 M6 x 55 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength with Class 10.9 rating and 140,000 psi capability for reliable performance in high-stress applications
• Superior corrosion resistance through zinc-plated alloy steel construction, extending service life in demanding environments
• Optimized drive engagement with 4 mm hex drive design providing secure torque transmission and reduced stripping risk
• Precision threading with M6 x 1 mm coarse pitch and Class 6g fit ensuring smooth installation and vibration resistance
• Enhanced durability from Rockwell C32 hardness rating, maintaining structural integrity under repeated loads
• Versatile rounded button head profile offering both aesthetic appeal and reduced snagging in confined spaces
• Full 55 mm threading providing maximum grip length and uniform stress distribution across the entire fastener

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M6 metric screws deliver exceptional performance where reliability is critical. The zinc-plated alloy steel construction provides superior corrosion protection for machinery, equipment assemblies, and structural components exposed to harsh environments. The fully threaded coarse pitch design ensures rapid installation and secure fastening in materials where vibration resistance is essential. With Class 10.9 strength rating and Rockwell C32 hardness, these hex head screws maintain clamping force under extreme loads, making them ideal for automotive assemblies, industrial machinery, construction equipment, and heavy-duty manufacturing applications where fastener failure is not an option.

Specification Summary & Compliance

This M6 x 1 mm x 55 mm fastener features Class 6g thread tolerance and fully threaded coarse pitch design manufactured to ISO 7380 standards. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. The 4 mm hex drive and rounded button head profile provide consistent installation performance while maintaining the specified Class 10.9 mechanical properties throughout the fastener's service life.