S-91280A031 M18 x 90 mm ISO 8765, DIN 960 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
- Exceptional tensile strength with Class 8.8 rating (110,000 psi) for reliable performance in demanding applications
- Superior corrosion resistance provided by zinc plating, extending service life in harsh industrial environments
- Precision fine threading with 1.5mm pitch and Class 6h fit ensures secure fastening and vibration resistance
- Optimized partial threading design allows for better load distribution and reduced stress concentration
- Enhanced durability from Rockwell C21 hardness, maintaining structural integrity under heavy loads
- Easy installation and removal with standard external hex drive and 27mm head width for common tool compatibility
- Reliable industrial performance backed by ISO 8765 and DIN 960 standards compliance
Professional Applications & Engineering Value
This M18 hex head screw delivers critical engineering solutions for industrial assembly challenges. The Class 8.8 steel construction provides the necessary tensile strength for heavy machinery, structural frameworks, and equipment manufacturing where vibration resistance is paramount. The fine 1.5mm pitch threading offers superior clamping force distribution, while the partial threading design prevents thread damage during installation and allows for precise tension control. The zinc plated finish ensures long-term corrosion protection in manufacturing facilities, outdoor applications, and high-humidity environments. These metric screws are engineered to maintain integrity under dynamic loads, making them ideal for automotive assemblies, construction equipment, and industrial machinery where failure is not an option.
Specification Summary & Compliance
Manufactured to exact ISO 8765 and DIN 960 standards with Class 6h thread fit precision. Features M18 x 1.5mm fine thread spacing with 42mm minimum thread length and 90mm total length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The Class 8.8 strength grade ensures consistent performance across industrial applications with verified Rockwell C21 hardness and 110,000 psi tensile strength.
