S-90854A135 M6 x 20 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength – With a 150,000 psi rating, this Class 10.9 screw ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior Corrosion Resistance – The zinc yellow-chromate plating provides a durable barrier against rust and environmental degradation, extending service life in harsh conditions.
• High Hardness & Durability – Rockwell C32 hardness enhances wear resistance and maintains thread integrity during repeated installations and heavy loads.
• Precision Thread Fit – Class 6h thread tolerance ensures smooth, secure engagement with mating components, minimizing loosening and vibration issues.
• Full Threading for Maximum Grip – The fully threaded M6 x 1 mm coarse pitch design offers consistent holding power along the entire 20 mm length, ideal for thick materials.
• Easy Installation & Removal – External hex drive and standard right-hand thread allow for quick assembly and disassembly using common tools, saving time and labor.
• Compliance with International Standards – Meets ISO 4017 (DIN 933) specifications and RoHS 3/REACH regulations, ensuring quality and environmental safety for global supply chains.

Professional Applications & Engineering Value

This M6 hex head screw is engineered to address critical challenges in industrial and mechanical assemblies where high tensile strength and corrosion resistance are paramount. The Class 10.9 steel construction, combined with zinc yellow-chromate plating, provides reliable performance in demanding environments such as automotive frames, machinery enclosures, and structural supports. The coarse thread pitch and fully threaded design ensure rapid installation and secure fastening in materials prone to vibration or thermal expansion. By meeting ISO 4017 standards, this metric screw delivers consistent dimensions and thread accuracy, reducing assembly errors and enhancing overall system reliability for B2B procurement needs.

Specification Summary & Compliance

This fastener features an M6 x 1 mm metric coarse thread with a Class 6h thread fit for precise tolerance, and is fully threaded over a 20 mm length. It complies with ISO 4017 (equivalent to DIN 933) manufacturing specifications, ensuring dimensional accuracy and interchangeability. Additionally, the product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.