S-91310A421 M24 x 100 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 load-bearing capacity with Class 10.9 strength grade and 150,000 psi tensile strength for reliable performance in demanding applications
- Superior wear resistance due to Rockwell C32 hardness, ensuring extended service life and reduced replacement frequency
- Secure fastening with coarse 3mm pitch threading providing excellent grip and vibration resistance in various materials
- Precise Class 6g thread fit ensuring smooth assembly and consistent torque application with standard metric nuts
- Optimized partial threading design allowing for controlled clamping force and reduced thread damage in specific joint configurations
- Standard-compliant external hex drive enabling easy installation with common tools while meeting ISO 4014/DIN 931 specifications
- Environmentally responsible manufacturing with full RoHS 3 and REACH compliance for safe use in regulated industries
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these M24 hex head screws deliver critical reliability in structural assemblies, machinery frames, and equipment mounting. The Class 10.9 steel construction provides exceptional resistance to dynamic loads and shock, while the coarse metric thread with 3mm pitch ensures rapid installation and superior vibration resistance in steel-to-steel connections. The partially threaded design concentrates clamping force precisely where needed, preventing thread stripping in soft materials and simplifying alignment in multi-component assemblies. With external hex drive compatibility, maintenance teams can achieve proper torque values using standard industrial tools, reducing installation errors and downtime across manufacturing, construction, and heavy equipment sectors.
Specification Summary & Compliance
This 100mm length fastener features M24 x 3mm coarse threads with Class 6g thread fit tolerance and 54mm minimum thread length. Manufactured to ISO 4014/DIN 931 standards with right-hand threading and 36mm hex head dimensions. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
