S-91310A542 M8 x 40 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws
High-Strength Metric Class 10.9 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 durability with Class 10.9 steel construction, ensuring reliable performance in demanding industrial environments
- High tensile strength of 150,000 psi provides superior resistance to breaking under heavy loads and vibrations
- Rockwell C32 hardness offers excellent wear resistance, extending service life in high-stress applications
- Partially threaded design with 22mm minimum thread length allows for secure fastening while reducing material usage and weight
- Class 6g thread fit ensures precise engagement and easy installation with standard metric nuts
- External hex drive and 13mm head width facilitate quick assembly and disassembly with common tools
- Compliance with ISO 4014/DIN 931 standards guarantees dimensional accuracy and interchangeability in global projects
Professional Applications & Engineering Value
This M8 hex head screw delivers robust performance in critical industrial applications such as machinery assembly, structural frameworks, and heavy equipment manufacturing. The Class 10.9 steel material, combined with Rockwell C32 hardness, provides exceptional resistance to fatigue and shear forces, addressing common failure points in dynamic load conditions. The partially threaded metric design with coarse M8 x 1.25mm threads ensures rapid installation and reliable clamping force, while the external hex drive allows for high-torque application without stripping. Engineered to meet ISO 4014/DIN 931 specifications, this screw offers consistent quality for construction and engineering projects requiring precise fastener performance under stress.
Specification Summary & Compliance
This screw features Class 6g thread fit per metric standards, ensuring dimensional accuracy for reliable mating components. It complies with ISO 4014/DIN 931 manufacturing specifications for hex head bolts, guaranteeing consistent thread form and mechanical properties. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances, making it suitable for global supply chains and eco-conscious industrial applications.
