The Linear 2400-421 is an OEM replacement internal tooth star lock washer from the Linear 2400-series parts catalog. It measures Size not specified in part title - refer to assembly documentation for nominal bolt size. Constructed from Spring steel. Internal teeth provide multiple gripping points for vibration resistance. Suitable for both mechanical fastening and electrical grounding applications. Star tooth geometry bites into fastener and mating surface. Compatible with Linear SWG series gate operators and Linear SG series gate operators among other Linear gate operator series.
A: It is an internal tooth star lock washer used in Linear gate operator assemblies to prevent fastener loosening under vibration. The exact nominal size should be confirmed from the assembly drawing.
A: Internal teeth on the ID of the washer bite into the fastener and the mating surface simultaneously, creating multiple engagement points that resist rotational loosening.
A: It differs from 2400-400, which is also an internal tooth star washer for 1/2 in fasteners. The 2400-421 may be a different nominal size; confirm from the assembly BOM.
A: Internal tooth lock washers are commonly used under screw heads in electrical grounding connections to break through surface coatings and ensure good conductivity.
A: Refer to the Linear SWG or SG gate operator assembly documentation to identify the specific bolt size and location where 2400-421 is used.
