S-91280A540 M8 x 35 mm ISO 4017, DIN 933, SAE J1199, ISO 898 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 demanding industrial environments
- High tensile strength of 110,000 PSI ensures reliable performance under heavy loads and vibration
- Class 8.8 strength grade provides excellent durability for critical structural and machinery applications
- Precise Class 6h thread fit guarantees secure fastening and prevents loosening over time
- Full threading along the 35mm length offers maximum grip and load distribution across the entire fastener
- External hex drive design enables easy installation and removal with standard tools
- Compliance with international standards including ISO 4017 and DIN 933 ensures quality and interchangeability
Professional Applications & Engineering Value
This M8 hex head screw delivers exceptional engineering value in demanding industrial settings where fastener failure is not an option. Manufactured from Class 8.8 steel with Rockwell C21 hardness, it maintains structural integrity under extreme stress and vibration. The coarse thread pitch of 1.25mm provides superior engagement in soft materials and faster installation times. Zinc plating creates a protective barrier against moisture and chemicals, significantly extending service life in outdoor equipment, machinery assembly, and structural frameworks. The fully threaded design ensures maximum clamping force distribution, making it ideal for applications requiring consistent pressure along the entire fastener length.
Specification Summary & Compliance
This metric fastener features M8 x 1.25mm coarse threads with Class 6h thread fit tolerance for precision engagement. The 35mm length and external hex drive comply with ISO 4017, DIN 933, and SAE J1199 manufacturing specifications. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring safe use across various industrial applications while maintaining the specified 110,000 PSI tensile strength and material properties.
