S-91290A083 M4 x 65 mm DIN 912 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide finish prolongs service life in harsh industrial environments, minimizing maintenance needs.
• High hardness rating of Rockwell C37 provides excellent wear resistance, maintaining thread integrity over repeated use.
• Precise Class 5g6g thread fit guarantees smooth assembly and secure fastening, enhancing operational efficiency.
• Partially threaded design allows for optimal clamping force distribution, ideal for applications requiring precise grip length.
• Compliance with DIN 912 standard ensures dimensional accuracy and interchangeability, supporting global engineering specifications.
• 3 mm hex drive socket enables easy installation with standard tools, reducing assembly time and effort.

Professional Applications & Engineering Value

This M4 socket head cap screw is engineered from black-oxide alloy steel to address common industrial challenges like vibration loosening and environmental degradation. The coarse thread with a 0.7 mm pitch ensures quick assembly and strong holding power in dynamic loads, making it perfect for heavy-duty machinery, automotive systems, and precision equipment. Its partially threaded rod design concentrates stress effectively, preventing joint failure in high-torque scenarios. With a 65 mm length and 20 mm minimum thread engagement, it offers versatility in securing components where space and reliability are critical, supported by its Class 12.9 strength rating for demanding engineering applications.

Specification Summary & Compliance

This screw adheres to DIN 912 for dimensional standards, featuring a Class 5g6g thread fit for precise tolerance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory approval for industrial use. The metric coarse thread with a 0.7 mm pitch and right-hand direction provides consistent performance across global specifications.