An assortment of stainless steel metric split lock washers from The Hillman Group. Ideal for situations where potential loosening from corrosion or vibration is a concern, split lock washers are used to prevent nuts and bolts from coming loose. These fasteners contain split ends that help "lock" into the mating material, thus providing a locking feature when tightened beneath a nut. Variants included in this assortment feature a zinc finish and range from 3mm to 20mm in diameter. Full assortments of #45352 contain ten (10) refills comprised of Hillman item numbers #4123 - #4127 and #45353 - #45357.