S-91280A718 M12 x 35 mm ISO 4017, DIN 933, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 8.8 strength rating and 110,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
• Optimized installation efficiency with external hex drive and 19mm head width for secure tool engagement and torque application
• Enhanced thread engagement with coarse 1.75mm pitch design that resists loosening under vibration and dynamic loads
• Full thread coverage along the 35mm length provides maximum grip strength and uniform stress distribution
• Precision manufacturing to Class 6h thread fit ensures consistent performance and interchangeability
• Global compliance assurance meeting ISO 4017, DIN 933, RoHS 3, and REACH standards for international project specifications

Professional Applications & Engineering Value

This M12 hex head screw delivers critical engineering solutions where structural integrity and corrosion resistance are paramount. The Class 8.8 steel construction provides optimal strength-to-weight ratio for heavy-duty applications in construction, machinery assembly, and industrial equipment. The coarse thread pitch (1.75mm) ensures rapid installation and superior resistance to vibration-induced loosening, while the zinc plating offers essential protection against environmental degradation. With fully threaded design and external hex drive, these metric hex screws provide maximum clamping force and straightforward installation across manufacturing, automotive, and structural applications where reliable fastening is non-negotiable.

Specification Summary & Compliance

Manufactured to precise Class 6h thread fit tolerance with M12 x 1.75mm coarse thread specification. Complies with ISO 4017 and DIN 933 dimensional standards and ISO 898 mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Features Rockwell C21 hardness and 110,000 psi tensile strength as per Class 8.8 specifications, ensuring consistent performance across industrial applications.