Split Lock Washers

Split lock washers feature a spiral design made to keep threaded fasteners from loosening.  This lock washer grasps the material and allows for a secure connection preventing loosening from vibration. 

High Collar Lock Washers

Split lock washers feature a spiral design made to keep threaded fasteners from loosening.  This lock washer grasps the material and allows for a secure connection preventing loosening from vibration.  High collar lock washers are designed to fit under the head of a socket cap screw.  The high collar lock washers are typically used where vibration may occur.

Internal Tooth Lock Washers
Internal tooth lock washers have teeth that extend radially inward. The teeth bite into the surface and is designed to prevent a nut or bolt head from loosening.  These lock washers absorb shock and vibration.

External Tooth Lock Washers
External tooth lock washers have teeth on the outside edge of the washer.  The teeth bite into the screw head and joint for a tight grip.