S-91180A923 M20 x 40 mm ISO 8676, DIN 961 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 Steel 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
- Superior corrosion resistance with zinc plating that protects against rust and extends service life in harsh environments
- High tensile strength of 110,000 psi ensures reliable performance under heavy loads and prevents fastener failure
- Precise Class 6h thread fit provides smooth assembly and secure fastening in critical applications
- Exceptional durability from Rockwell C21 hardness, maintaining structural integrity under repeated stress
- Full threading design offers maximum grip and uniform load distribution along the entire length
- External hex drive with 30mm head allows for easy installation and high torque application with standard tools
- Compliance with international standards including DIN 961 and ISO 8676 ensures consistent quality and interchangeability
Professional Applications & Engineering Value
This M20 hex head screw with extra fine 1.5mm pitch threading addresses critical engineering challenges in precision assembly applications. The Class 8.8 steel construction combined with zinc plating provides optimal protection against corrosion while maintaining 110,000 psi tensile strength for heavy-duty fastening requirements. The fully threaded metric design ensures maximum engagement in materials where vibration resistance is crucial, while the external hex drive facilitates efficient installation in confined spaces. Ideal for machinery, structural frameworks, and industrial equipment where extra fine thread precision and reliable performance under dynamic loads are essential, this DIN 961 compliant fastener delivers consistent results in demanding manufacturing and construction environments.
Specification Summary & Compliance
This metric hex head screw features precise Class 6h thread fit tolerance with M20x1.5mm extra fine threading and 40mm length. Manufactured to ISO 8676 DIN 961 specifications with right-hand thread direction. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications while meeting international quality standards for metric fasteners.
