S-91310A712 M12 x 30 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior wear resistance due to Rockwell C32 hardness, ensuring extended service life in demanding environments
• Optimized torque transmission through external hex drive design, allowing for secure installation with standard tools
• Enhanced vibration resistance provided by coarse thread spacing (1.75mm pitch), maintaining tight connections under dynamic loads
• Full-thread engagement capability along the entire 30mm length, delivering maximum holding power across the fastener
• Precision manufacturing to Class 6g thread fit tolerance, ensuring consistent performance and interchangeability
• Regulatory compliance assurance meeting ISO 4017, RoHS 3, and REACH standards for global industrial acceptance

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Class 10.9 steel hex head screws provide critical solutions for structural assemblies requiring high tensile strength and reliable fastening. The M12 coarse thread configuration with 1.75mm pitch offers superior resistance to vibration loosening in machinery, construction frameworks, and equipment manufacturing. The fully threaded design ensures maximum thread engagement throughout the 30mm length, distributing clamping forces evenly while the external hex drive facilitates efficient installation in confined spaces. Manufactured to ISO 4017 standards (equivalent to DIN 933), these metric hex head screws deliver consistent performance in automotive, industrial machinery, and structural steel applications where failure prevention is paramount.

Specification Summary & Compliance

This M12 x 1.75mm hex head screw features Class 6g thread fit tolerance for precision mating with standard nuts and threaded holes. Manufactured according to ISO 4017 specifications (DIN 933 equivalent) with right-hand coarse threading. Fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. The Class 10.9 strength rating confirms adherence to international metric fastener standards for high-strength applications.