S-91180A918 M18 x 60 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
- Exceptional load-bearing capacity with Class 8.8 strength grade and 110,000 PSI tensile strength for reliable performance in demanding applications
- Superior corrosion resistance thanks to zinc plating that protects against rust and extends service life in harsh environments
- Precision thread engagement with Class 6h fit and fine 1.5mm pitch ensuring secure, vibration-resistant fastening
- High durability from Rockwell C21 hardness steel construction that withstands repeated stress and mechanical wear
- Easy installation and removal with standard external hex drive and 27mm head width for common tool compatibility
- Full-threaded design providing maximum grip length and uniform stress distribution along the entire 60mm shaft
- Global compliance assurance meeting ISO 8676 (DIN 961) standards for consistent quality and dimensional accuracy
Professional Applications & Engineering Value
This M18 hex head screw delivers critical engineering value in heavy-duty industrial settings where fastener failure is not an option. The Class 8.8 steel construction provides the necessary structural integrity for machinery assembly, construction frameworks, and equipment manufacturing that demand high tensile strength. The zinc plated finish specifically addresses corrosion concerns in manufacturing plants, outdoor installations, and high-humidity environments. With its fully threaded metric design and Class 6h thread fit, this fastener ensures precise alignment and secure connections in applications ranging from industrial machinery to structural steel connections, eliminating the risk of loosening under dynamic loads and vibration.
Specification Summary & Compliance
This metric hex head screw features M18 x 1.5mm thread specifications with Class 6h thread fit tolerance, 60mm length, and external hex drive compatibility. Manufactured to ISO 8676 (DIN 961) standards for dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while meeting international quality benchmarks for steel fasteners.
