S-91180A530 M8 x 20 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 capability with 110,000 psi tensile strength, ensuring reliable performance in high-stress applications
- Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Precise fine thread engagement (M8x1.0) providing secure fastening and vibration resistance
- High-strength Class 8.8 steel construction offering excellent durability and Rockwell C21 hardness
- Full threading for maximum grip length allowing complete utilization of the 20mm shaft
- Standard-compliant manufacturing ensuring consistent quality and interchangeability per ISO 8676 DIN 961
- External hex drive design enabling easy installation with common tools and high torque application
Professional Applications & Engineering Value
These M8 hex head screws deliver critical engineering solutions where vibration resistance and structural integrity are paramount. The Class 8.8 steel construction combined with fine metric threading creates exceptional clamping force distribution, preventing loosening in dynamic load conditions. The zinc plating surface treatment provides essential corrosion protection for machinery, equipment assemblies, and structural frameworks exposed to industrial atmospheres. With fully threaded design and external hex drive, these fasteners offer maximum engagement depth and straightforward installation using standard wrenches, making them ideal for automotive, manufacturing, and heavy equipment applications requiring high-tensile fastening solutions.
Specification Summary & Compliance
Manufactured to precise Class 6h thread fit tolerances with right-hand metric fine threads (M8x1.0). These hex head screws strictly conform to ISO 8676 DIN 961 specifications and meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental safety and regulatory adherence for global industrial applications.
