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DIN 404 Capstan Screw – Steel Class 5.8
DIN 404 capstan screws feature a cylindrical head with cross-drilled holes, allowing installation and adjustment using a bar or pin for added leverage. This head design enables controlled manual tightening without the need for a traditional drive recess, making it ideal for applications that require frequent adjustment or secure clamping. The capstan style provides practical handling and reliable performance in mechanical assemblies.
Material
Manufactured from steel class 5.8, these screws offer dependable strength and durability for general industrial use. Class 5.8 steel provides good tensile strength suitable for non-critical structural and mechanical applications. They are available in a plain finish, which offers no corrosion resistance and is intended for dry, controlled environments, or in a zinc plated finish, which provides protective corrosion resistance against oxidation and light environmental exposure while maintaining a clean, professional appearance.
Use
DIN 404 capstan screws are commonly used in machinery adjustments, fixture assemblies, clamping devices, jigs, and positioning systems. They are particularly suited for equipment requiring periodic tightening, alignment, or manual repositioning. Their practical head design makes them effective in workshop equipment, mechanical installations, and general industrial applications where accessible, tool-assisted tightening is required.
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