S-91280A033 M20 x 35 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 rating and 110,000 PSI tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Precise thread engagement with Class 6h fit and extra fine 1.5mm pitch ensuring secure fastening and vibration resistance
- Easy installation and removal with external hex drive and standard 30mm head width for common tool compatibility
- Full thread coverage along the 35mm length provides maximum grip strength and distribution of clamping force
- Consistent dimensional accuracy meeting ISO 8676 DIN 961 specifications for reliable interchangeability
- Rockwell C21 hardness maintains structural integrity under heavy loads and repeated use
Professional Applications & Engineering Value
This M20 hex head screw delivers critical engineering solutions for industrial assembly challenges where high tensile strength and corrosion resistance are paramount. The zinc plated steel construction protects against environmental degradation in manufacturing facilities, construction sites, and heavy equipment applications. The extra fine metric thread with 1.5mm pitch provides superior vibration resistance compared to standard pitches, making it ideal for machinery subject to dynamic loads. The fully threaded design ensures maximum engagement in thick materials, while the external hex drive facilitates quick installation with common tools. Engineered to ISO 8676 DIN 961 standards, this fastener offers reliable performance in structural connections, industrial machinery, and automotive assemblies where failure is not an option.
Specification Summary & Compliance
This metric fastener features precision Class 6h thread fit with M20x1.5mm extra fine threading and right-hand direction. The 35mm length with full threading and 12.7mm head height provides consistent dimensional accuracy. Manufacturing complies with ISO 8676 DIN 961 specifications for hex head screws. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for industrial use across global markets.
