It is round with a hole in the center and can be used where loosening from corrosion or vibration is a concern.
Tab lock washer dimensions.
Tab washers are an additional form of lock washer that features one or more internal or external notches or tabs designed to hold the nut in place in relation to the connecting bolt or stud.
Metric tab lock washers bend the tab of these metric lock washers against the flats of a hex nut or bolt head to prevent the fastener and washer from turning and loosening due to vibration wear or changes in temperature.
Split lock washers feature a slight spiral design that creates pressure to provide a type of spring action.
Tabs may be bent or engage into keyways or slots in connected surfaces to provide a positive locking surface.
Tab washers have an internal tab that fits into the keyway of a shaft and an outer tab is bent over into one of the slots located on the outside diameter of the nut.
Regular heavy extra duty and hi collar as given below.
Lock washers are used with the km kml 3074 3015 3072 3016 hm n and an series of lock nuts that are designed for this purpose.
Helical spring lock washers made of materials other than carbon steel are available in the regular series.
Tab washers with long tab steel zinc plated blue 2 bn 841 vsm 12750 tab washers for screws and nuts steel zinc plated blue 3 bn 844 din 462 tab washers for slotted round nuts din 1804 steel zinc plated blue 4.
Helical split spring lock washers are available in four series.
American national standard helical spring lock washers ansi asme b18 21 1.
Tab lock washers bend one tab against the side of the mounting surface and the other tab against the flats on a bolt or nut to prevent both the fastener and washer from turning and loosening in high vibration applications such as a motor mount.
This allows the washer to grasp adjoining materials and help prevent loosening from vibration.
Be sure to check the dimensions an specifications on lock washers.
Providing a spring like locking action to compensate for loosening caused by slight wear these split lock washers are made of carbon steel.
This split lock washer provides a circular bearing this split lock washer provides a circular bearing surface with offset split ends which help bite into the mating material to provide a locking feature when tightened beneath a nut.
They work to lock a part in place and are most often used in applications where there are drastic heat conditions or heavy vibrations.
They are also available in stainless steel zinc plated and silicon bronze.
