Lock washers are used for keeping nuts and bolts coming loose. They come in various models. Each lock washer is made for a specific application. Some lock washers come in a ring shape the others can be star-shaped with an outer ring of teeth.
The lock washer prevents nuts and bolts from turning, slipping and coming loose because of vibration and twist. The basic functionality of lock washer is to hold nut and bolt in place.
You can choose from helical also known as a split washer, external-tooth also known as star washer, pyramid-type or dome-type lock washer.
The helical lock washer is in shape of the ring with uneven ends. The edge of the ring grabs onto fastener material to keep it from moving.
External-tooth lock washer has teeth located on the outside of the ring and it is most suitable for large fasteners heads.
Pyramid-type lock washers are required for any jobs that need high-tightening torques.
Dome-type lock washers are recommended for use with thin and soft materials
You can choose from: