Internal Tab Washer

They work to lock a part in place and are most often used in applications where there are drastic heat conditions or heavy vibrations.

Internal tab washer.

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. Tab and lock washers are also utilized in environments that feature excessive heating or consistant vibrations. Use with fasteners that have heads large enough to make contact with the external teeth such as pan button and binding head screws. 200pcs din 432 m12 washers 13mm id with external tab a4 stainless steel ships free in usa by aspen fasteners assp04324130 by aspen tab washers 241 89 241.

Tabs may be bent or engage into keyways or slots in connected surfaces to provide a positive locking surface. Please select a size below for further information and 3d model. Internal tab lock washers external tab lock washers and lock washers are designed to be utilized in critical assemblies such as naval ships power plants and in heavy equipment preventing bolts from coming loose.