S-91290A046 M18 x 75 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 12.9 rating and 170,000 PSI tensile strength for reliable performance in high-stress applications.
• Superior corrosion resistance due to the black-oxide finish on alloy steel, extending service life in demanding industrial environments.
• Precise torque application enabled by the 14 mm hex socket drive, reducing the risk of tool slippage and head stripping.
• Optimized thread engagement with a 48 mm partially threaded M18x2.5 coarse thread design, ensuring secure fastening and easier alignment.
• Enhanced durability and wear resistance from Rockwell C37 hardness, maintaining integrity under repetitive loads and vibrations.
• Global compatibility and reliability by conforming to DIN 912/ISO 4762 standards, guaranteeing dimensional accuracy and interchangeability.
• Safe for regulated industries with full compliance to RoHS 3 and REACH, supporting environmentally conscious and health-safe manufacturing.

Professional Applications & Engineering Value

This M18 socket head cap screw is engineered to address critical challenges in heavy-duty machinery, automotive assembly, and structural frameworks where high tensile strength and vibration resistance are paramount. The black-oxide alloy steel construction combats rust and wear, reducing maintenance frequency in humid or abrasive settings. Its partially threaded design with a coarse metric thread (M18x2.5) allows for rapid installation and secure clamping in materials like steel or cast iron, minimizing the risk of cross-threading. The 14 mm hex drive ensures efficient torque transfer, ideal for confined spaces common in industrial fastening applications, while the Class 12.9 rating assures consistent performance under dynamic loads, preventing unexpected failures.

Specification Summary & Compliance

This screw adheres to precise metric dimensions, including a 75 mm length, 48 mm minimum thread length, and Class 5g6g thread fit for consistent assembly. It meets DIN 912 and ISO 4762 specifications, ensuring dimensional accuracy and mechanical properties. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it is free of hazardous substances and suitable for global industrial use.