S-90386A106 M6 x 40 mm DIN 6921 Medium-Strength Metric Class 8.8 Steel Serrated-Flange Hex Head Screws
Medium-Strength Metric Class 8.8 Steel Serrated-Flange Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments.
- Superior load-bearing capacity from Class 8.8 strength grade, ensuring reliable performance under high stress up to 110,000 psi tensile strength.
- Secure anti-loosening grip provided by the integrated flange and serrations, reducing the need for additional washers and improving assembly stability.
- Efficient installation and removal with external hex drive and coarse M6x1 mm threading, allowing for quick fastening in various materials.
- Precise thread fit with Class 6g tolerance, ensuring consistent engagement and reducing the risk of cross-threading in metric applications.
- Full threading along the 40mm length offers versatile fastening depth and uniform stress distribution for enhanced joint integrity.
- Compliance with international standards including DIN 6921, RoHS 3, and REACH, guaranteeing safety and regulatory acceptance for global supply chains.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this M6 hex head screw combines zinc-plated steel durability with a flanged design to address common issues like vibration loosening and corrosion. The Class 8.8 strength and Rockwell C22 hardness provide exceptional resistance to shear and tensile forces, making it ideal for machinery, automotive assemblies, and structural frameworks where reliability is critical. With fully threaded metric coarse threads, it ensures rapid installation and robust holding power in metal, plastic, or composite materials, reducing maintenance downtime and improving operational efficiency in heavy-duty fastening scenarios.
Specification Summary & Compliance
This screw adheres to precise metric dimensions with a thread size of M6x1 mm and length of 40 mm, manufactured to Class 6g thread fit for consistent performance. It conforms to DIN 6921 specifications for hex flange screws and is verified to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and material restrictions are upheld.
