S-91280A994 M18 x 50 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 environments
- Exceptional tensile strength of 110,000 psi for reliable performance in heavy-duty applications
- High-strength Class 8.8 steel construction ensures durability and resistance to deformation under load
- Precision Class 6h thread fit provides consistent engagement and vibration resistance
- Coarse thread design enables faster installation and better performance in soft materials
- Fully threaded shank offers maximum grip length and uniform load distribution
- External hex head design allows for high-torque installation with standard tools
Professional Applications & Engineering Value
These M18 hex head screws deliver exceptional engineering value across demanding industrial applications. The Class 8.8 steel construction combined with zinc plating provides reliable corrosion protection for outdoor equipment, structural frameworks, and machinery assemblies. The coarse metric thread with 2.5mm pitch ensures rapid installation in construction projects and manufacturing applications where time efficiency is critical. With fully threaded design and Rockwell C21 hardness, these fasteners maintain integrity under extreme vibration and dynamic loads, making them ideal for heavy machinery, conveyor systems, and industrial equipment where failure is not an option. The external hex drive facilitates high-torque applications without stripping, ensuring secure connections in critical assemblies.
Specification Summary & Compliance
This M18 x 2.5mm hex head screw features precision Class 6h thread fit according to ISO metric standards, ensuring consistent threading performance. Manufactured to ISO 4017/DIN 933 specifications with 50mm length and fully threaded design. The fastener meets stringent international regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring environmental safety and material transparency for global industrial applications.
