DIN: 25201
Surface treatment: Delta Protect
Nord-Lock washer pair based on DIN 25201. The use of Nord-Lock washer pair is recommended in case of fixing exposed to especially strong loosening effects (e.g. vibration, dynamic loads). The cogging is inclined on the internal side of the Nord-Lock washer pair, the rising angle of which is bigger than the angle of the thread pitch. If the binding material exposed to vibration or dynamic load came to a loosening direction, the washer pair can only move on the internal, inclined cogging, the tension in the screw increases and a self-closing binding is created. The dowel action of the internal cogging hinders all loosening attempts. The Nord-Lock washer pairs are coated with zinc lamella.
Description
DIN: 25201
Surface treatment: Delta Protect
Nord-Lock washer pair based on DIN 25201. The use of Nord-Lock washer pair is recommended in case of fixing exposed to especially strong loosening effects (e.g. vibration, dynamic loads). The cogging is inclined on the internal side of the Nord-Lock washer pair, the rising angle of which is bigger than the angle of the thread pitch. If the binding material exposed to vibration or dynamic load came to a loosening direction, the washer pair can only move on the internal, inclined cogging, the tension in the screw increases and a self-closing binding is created. The dowel action of the internal cogging hinders all loosening attempts. The Nord-Lock washer pairs are coated with zinc lamella.
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