Lock screw, round pan head, square lock and nut
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Lock screw, round pan head, square lock and nut
DIN 603, zinc-plated steel 4.8, blue passivated (A2K), nut
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Variants
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The square neck connects a round head screw to, for example, an oval hole and enables tightening from the nut side without counter-tightening.
Select RAL-colour code
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