S-91280A577 M8 x 160 mm ISO 4014, DIN 931, 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
- Exceptional tensile strength with Class 8.8 rating and 110,000 psi capability for reliable performance in high-stress applications
- Superior corrosion resistance from zinc plating, extending service life in demanding industrial environments
- Optimized thread engagement with coarse M8x1.25 thread pitch ensuring quick assembly and secure fastening
- Precision external hex drive design providing maximum torque transmission and reduced tool slippage
- Controlled partial threading with 22mm thread length offering flexibility in material thickness accommodation
- Strict quality compliance with ISO 4014, DIN 931 and SAE J1199 standards guaranteeing interchangeability and reliability
- Environmental responsibility through RoHS 3 and REACH compliance for sustainable procurement
Professional Applications & Engineering Value
This M8 hex head screw delivers critical engineering advantages for industrial fastening systems. The Class 8.8 steel construction provides exceptional load-bearing capacity, making it ideal for machinery, structural assemblies, and equipment manufacturing where vibration resistance and joint integrity are paramount. The zinc plated finish creates a protective barrier against oxidation and chemical exposure, significantly extending service life in harsh operating conditions. With its partially threaded design and coarse metric threading, this fastener enables rapid installation while maintaining precise clamping force distribution. The external hex drive configuration ensures compatibility with standard tools and facilitates maintenance accessibility in confined spaces, reducing downtime during assembly or disassembly procedures.
Specification Summary & Compliance
This 160mm length hex head screw features M8x1.25 coarse threads with Class 6h thread fit tolerance for precise engagement. Manufactured to ISO 4014, DIN 931, and SAE J1199 specifications, it ensures dimensional accuracy and mechanical consistency. The fastener demonstrates Rockwell C21 hardness and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards for restricted substances.
