DIN 94
DIN 94 is a standard by the German Institute for Standardization (DIN) for split pins, also known as cotter pins. This standard defines the dimensions, tolerances, and mechanical properties of split pins used for securing nuts and bolts in various mechanical and structural applications. Split pins according to DIN 94 are available in different sizes and materials to meet varying requirements.
Features and Dimensions
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Available in various diameters and lengths, commonly 1 mm to 20 mm diameter and up to 200 mm length
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Made from wire bent in the middle and split at the ends
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Inserted into a hole in a bolt or nut and bent back to secure the connection
Materials and Surface Treatments
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Steel
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Brass
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Surface treatments available for added corrosion resistance:
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Zinc plating
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Nickel plating
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Applications
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Mechanical engineering: securing nuts and bolts in machines and equipment
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Automotive industry: safety connections in vehicles
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Construction: securing structural connections in building constructions
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Electrotechnical equipment: safety locking of connections in electrical devices
Assembly and Use
When installing DIN 94 split pins, it’s important to choose the correct size and material for optimal performance and long-term reliability. Pins are inserted through a hole in a bolt or nut and then bent to lock the connection securely.
Conclusion
DIN 94 split pins are essential fastening elements in many mechanical and structural settings. Their standardized dimensions and materials provide a reliable and safe locking solution that meets diverse application requirements.