Specification Brand : Aokoll BulletPoint1 : High-Quality Material: Made from 65Mn steel that resists corrosion and wear, ensuring longevity and reliability in all your applications BulletPoint2 : Size: Seven most commonly used metric sizes: M3, M4, M5, M6, M8, M10, and M12, ensuring you always have the right washer size at your fingertips. A must-have for both professional technicians and DIY enthusiasts BulletPoint3 : Organized Storage: Comes in a labeled, compartmentalized case, keeping your washers neatly organized and easily accessible for all your project needs BulletPoint4 : Application: Designed with sharp internal teeth, effectively bite into surfaces, preventing fasteners from rotating or loosening, especially in vibration-prone environments. Ideal for a range of applications including electrical connections, machinery, electronics, automotive, and more BulletPoint5 : Customer Service: 7X24 customer service to solve your problem, One-year free return for any quality problem BulletPoint6 : These stainless steel internal toothed lock washers feature a 1/2" screw size BulletPoint7 : 25 pieces per retail package Color : Black ExteriorFinish : Alloy Steel ExternallyAssignedProductIdentifier1 : 842176142890 ExternallyAssignedProductIdentifier2 : 0842176142890 ExternallyAssignedProductIdentifier3 : 5056133342543 GpsrSafetyAttestation : 1 ItemName : AOKOLL 350PCS Internal Tooth Star Lock Washers, Push Nuts Assortment, Press On Retaining Locking Washer Assortment Kit (Black) ItemPackageDimensions_Height : 18.288 centimeters ItemPackageDimensions_Length : 3.2004 centimeters ItemPackageDimensions_Width : 13.6906 centimeters ItemPackageQuantity : 60 ItemTypeKeyword : tooth-lock-washers Manufacturer : AOKOLL Material : 65Mn steel MetalType : Alloy Steel MetalType1 : Alloy Steel MetalType2 : Spring Steel ModelNumber : 43797 NumberOfItems : 350 NumberOfPieces : 350 PartNumber : S004L0023 ProductDescription : AOKOLL 350PCS Internal Tooth Star Lock Washers, Push Nuts Assortment, Press On Retaining Locking Washer Assortment Kit ProductSiteLaunchDate : 2023-09-10T07:00:00.000Z Size : M6 Style : Internal Tooth SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 31161500 WasherType : Internal Tooth Lock