S-91310A124 M5 x 20 mm ISO 4017, DIN 933 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
- High tensile strength of 150,000 psi ensures reliable performance in demanding industrial applications, reducing the risk of fastener failure.
- Class 10.9 strength grade provides superior load-bearing capacity and fatigue resistance for critical assemblies.
- Fully threaded M5 coarse pitch design offers excellent grip and faster installation in various materials.
- Rockwell C32 hardness enhances wear resistance and maintains thread integrity under vibration and stress.
- ISO 4017 (DIN 933) compliance guarantees dimensional accuracy and interchangeability in global engineering projects.
- External hex drive with 8mm head width allows for easy tightening with standard tools, improving assembly efficiency.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for international supply chains.
Professional Applications & Engineering Value
Engineered for high-stress industrial environments, these Class 10.9 metric hex head screws deliver exceptional durability where reliability is non-negotiable. The steel construction combined with Rockwell C32 hardness resists deformation and seizing, making them ideal for machinery, automotive, and structural applications subject to vibration and heavy loads. The fully threaded M5 coarse pitch (0.8mm) ensures maximum engagement in metals and composites, while the external hex drive simplifies maintenance and disassembly. Compliant with ISO 4017 standards, these screws offer precise Class 6g thread fit for consistent performance in OEM and MRO operations, reducing downtime and replacement costs.
Specification Summary & Compliance
This M5 x 0.8mm hex head screw features a 20mm length with right-hand coarse threads and Class 6g tolerance for accurate fit. Manufactured to ISO 4017 (equivalent to DIN 933) specifications, it ensures dimensional consistency. The fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting sustainable and safe industrial use.
