Specification Brand : ONLISUM BulletPoint : Inner Diameter: M8.4 50pcs, Color: External Tooth BulletPoint1 : Material: Made of 304 stainless steel materials, high strength (not easy to deform), wear-resistant, corrosion-resistant, rust-resistant and oxidation-resistant BulletPoint2 : Internal Tooth Lock Washer: The metric internal tooth star lock washers assortment kit contains 8 sizes 350 pcs, which are m2(60 pcs), m3(60 pcs), m4(60 pcs), m5(50 pcs), m6(50 pcs), m8(30 pcs), m10(20 pcs), m13(20 pcs) BulletPoint3 : Function: Lock washers are mainly used for nuts and bolts from rotating and loosening due to vibration and friction, and play a role in preventing loosening and fixing objects to ensure the stability of machines BulletPoint4 : Convenient Storage: Each of the 8 different sizes of internal tooth lock washer are individually stowed by type in an easy to carry clear case.Easy to store and use,so that the lock washer will not be lost or mixed up during use BulletPoint5 : Applications: Widely used in a variety of screw fastening applications, ideal for electrical connections in household and commercial appliances, automobiles and ships Color : Silver ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 0698435926639 ExternallyAssignedProductIdentifier2 : 698435926639 ItemName : ONLISUM Internal Tooth Star Lock Washers Assortment Kit, 350 Pcs Metric 304 Stainless Steel Internal Tooth Washers Set, 8 Size (M2 M3 M4 M5 M6 M8 M10 M13) ItemPackageDimensions_Height : 9 centimeters ItemPackageDimensions_Length : 13 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : tooth-lock-washers Manufacturer : ONLISUM Material : Spring Steel 1074/1075 MetalType : Stainless Steel ModelNumber : TD7515AK5Q41A517C8 NumberOfItems : 350 PartNumber : TD7515AK5Q41A517C8 ProductDescription : Features: Made of 304 stainless steel materials, high strength (not easy to deform), wear-resistant, corrosion-resistant, rust-resistant and oxidation-resistant. Lock washers are mainly used for nuts and bolts from rotating and loosening due to vibration and friction, and play a role in preventing loosening and fixing objects to ensure the stability of machines. Widely used in a variety of screw fastening applications, ideal for electrical connections in household and commercial appliances, automobiles and ships.