S-91180A731 M12 x 70 mm ISO 8765, DIN 960 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 for extended service life in harsh industrial environments
- Exceptional mechanical strength with Class 8.8 rating and 110,000 psi tensile strength for heavy-duty applications
- Precision extra fine threading (M12 x 1.25mm) provides superior vibration resistance and secure fastening
- Optimized partial threading with 30mm minimum thread length ensures maximum grip strength and material savings
- Rockwell C21 hardness maintains structural integrity under high stress and repeated use
- Standard-compliant manufacturing with ISO 8765 (DIN 960) ensures perfect fit and interchangeability
- External hex drive design enables quick installation and high torque application with standard tools
Professional Applications & Engineering Value
This M12 hex head screw with extra fine thread configuration delivers exceptional performance in demanding industrial settings where vibration resistance and precision fit are critical. The Class 8.8 steel construction combined with zinc plating provides reliable corrosion protection for machinery, structural assemblies, and equipment subjected to environmental exposure. The partially threaded design concentrates strength where needed most while reducing material usage. With Rockwell C21 hardness and 110,000 psi tensile strength, this fastener maintains clamping force under dynamic loads, making it ideal for automotive, construction, and heavy equipment applications where failure is not an option.
Specification Summary & Compliance
Manufactured to ISO 8765 (DIN 960) standards with Class 6h thread fit tolerance for precision engagement. The M12 x 1.25mm extra fine thread with right-hand direction ensures compatibility with standard metric components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming safe use across industrial sectors. The 70mm length with 30mm minimum thread length provides optimal fastening capacity for medium to thick material assemblies.
