S-91502A133 M4 x 40 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws
Alloy Steel Socket 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 strength and durability with Class 12.9 rating and 170,000 psi tensile strength, ideal for high-stress industrial applications.
- Superior corrosion resistance thanks to the blue-dyed zinc plating, extending service life in harsh environments.
- Precise and secure installation with a 3 mm hex drive and standard socket head, reducing the risk of stripping and ensuring reliable torque transmission.
- Optimized thread engagement with coarse M4 x 0.7 mm threads and Class 5g6g fit, providing quick assembly and strong holding power.
- Versatile partial threading (20 mm min thread length on a 40 mm screw) allows for flexible clamping and alignment in various assemblies.
- High hardness (Rockwell C37) minimizes wear and deformation under load, maintaining performance over time.
- Compliance with international standards including DIN 912/ISO 4762, ensuring consistent quality and interchangeability.
Professional Applications & Engineering Value
Engineered for demanding environments, this M4 socket head cap screw delivers reliable performance in machinery, automotive, and heavy equipment applications. The blue-dyed zinc-plated alloy steel construction offers enhanced corrosion resistance, critical for outdoor or humid conditions, while the Class 12.9 strength and Rockwell C37 hardness prevent failure under high vibration and tensile loads. Its partially threaded design and coarse metric thread enable efficient assembly and secure fastening in materials where full threading is unnecessary, reducing installation time and improving joint integrity. Ideal for precision engineering tasks, this screw meets rigorous DIN 912/ISO 4762 specifications, ensuring compatibility and safety in industrial fastening systems.
Specification Summary & Compliance
This screw features precise metric threading (M4 x 0.7 mm coarse) with a Class 5g6g thread fit for consistent dimensional accuracy. It adheres to DIN 912 and ISO 4762 manufacturing standards, guaranteeing reliable performance. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.
