S-91280A996 M18 x 70 mm ISO 4017, DIN 933 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, extending service life in harsh industrial environments
- High tensile strength of 110,000 psi ensures reliable performance under heavy loads and vibration
- Class 8.8 strength grade provides excellent mechanical properties for demanding structural applications
- Coarse 2.5mm pitch threading enables faster installation and reduced cross-threading risks
- Precise Class 6h thread fit guarantees secure fastening and consistent torque transmission
- External hex drive design allows for high-torque application with standard tools
- Full threading along 70mm length offers maximum adjustment flexibility and grip strength
Professional Applications & Engineering Value
This M18 hex head screw delivers exceptional engineering value for heavy-duty industrial applications including structural steel connections, machinery assembly, and construction projects. The Class 8.8 steel construction combined with Rockwell C21 hardness provides optimal strength-to-weight ratio, resisting deformation under extreme loads. The coarse metric thread with 2.5mm pitch significantly reduces installation time while maintaining secure fastening in vibrating environments. Zinc plating creates a protective barrier against corrosion, making these fully threaded screws ideal for outdoor applications and harsh manufacturing conditions where moisture and chemicals are present. The external hex drive design ensures compatibility with standard industrial tools for efficient maintenance and assembly operations.
Specification Summary & Compliance
Manufactured to ISO 4017 DIN 933 specifications with Class 6h thread fit tolerance ensuring dimensional accuracy and interchangeability. This metric coarse thread fastener features M18 x 2.5mm threading with right-hand direction and 70mm length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for safe and sustainable manufacturing practices.
