S-91290A281 M33 x 80 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications with Class 12.9 rating and 170,000 PSI tensile strength, ensuring reliable performance under high stress.
• Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
• High durability and wear resistance due to Rockwell C37 hardness, maintaining integrity through repeated use and heavy loads.
• Secure and efficient installation with a 24 mm hex drive and standard socket head profile, allowing for high torque application without slippage.
• Precise fit and reliable thread engagement with Class 5g6g thread fit and M33 x 3.5 mm coarse pitch, reducing the risk of cross-threading in fast assembly.
• Versatile fully threaded design for uniform clamping force along the entire 80 mm length, ideal for varied material thicknesses.
• Compliance with international standards including DIN 912/ISO 4762, ensuring consistent quality and interchangeability in global projects.

Professional Applications & Engineering Value

This Class 12.9 socket head cap screw is engineered to address critical challenges in heavy-duty industrial and construction settings, where failure due to vibration, high loads, or corrosion can lead to costly downtime. Made from black-oxide alloy steel, it offers enhanced protection against rust and wear, making it suitable for machinery, automotive assemblies, and structural frameworks exposed to harsh conditions. The fully threaded M33 metric screw with a coarse pitch of 3.5 mm ensures quick installation and strong holding power in materials like steel and cast iron, while the 24 mm hex drive allows for precise torque control in confined spaces. By meeting DIN 912/ISO 4762 standards, this fastener provides reliable performance in applications requiring high-strength bolting, reducing maintenance needs and improving operational safety.

Specification Summary & Compliance

This product adheres to precise dimensional tolerances with a Class 5g6g thread fit per metric standards, ensuring accurate alignment and secure fastening. It conforms to DIN 912 ISO 4762 for socket head cap screws, guaranteeing consistent manufacturing quality. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for use in various industries.