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Hexagon socket countersunk head screw ISO 10642 Steel Zinc plated 8.807470
Hexagon socket countersunk head screw ISO 10642 Steel Plain 08.807465
Hexalobular socket countersunk head screw ISO ≈10642 Steel Zinc plated 08.807450
Hexagon socket countersunk head screw ISO 10642 Steel Zinc plated with thick Cr(III) passivation 08.807473