M4 4.4 x 9.0 x 1.8mm Nord-lock Steel SP Washer, Delta Protekt® coating NL4SP/1212

SKU Number:

Stock accurate as of 27th March 2024 23:03pm


Catalogue Icon Catalogue page 31

More info

Tension makes the bolt self-locking

Nord-Lock wedge-locking technology secures bolted joints with tension instead of friction. The system comprises of a pair of washers that has cams on one side and radial teeth on the opposite side.

Nord-Lock wedge-locking products positively lock the fastener in a joint which is subjected to extreme vibration or dynamic loads.

The key is the difference in angles. Since the cam angle " α " is larger than the thread pitch " β ", the pair of washers expand more than the corresponding pitch of the thread. Refer to the second picture in images.

Let us and others know what you think of this product.
All reviews are extremely appreciated.