Specification Brand : uxcell BulletPoint1 : Fits Bolt Size:M10, Size: 10mmx3mm/0.4inchx0.12inch(OD x T) BulletPoint2 : 304 Stainless steel for corrosion resistance, for outside applications, easy to install. BulletPoint3 : Spring washers are a left-hand helix and allow the thread to be tightened in a right-hand direction only. BulletPoint4 : Apply for electrical connections on household and commercial appliances and industrial products, in order to prevent screw loosening or disperse pressure. BulletPoint5 : The benefit of spring lock washers lies in the trapezoidal shape of the washer. When compressed to loads near the proof strength of the bolt, it will twist and flatten. This reduces the spring rate of the bolted joint which allows it to maintain more force under the same vibration levels. This prevents loosening. Color : One Color ExternallyAssignedProductIdentifier : 9770188181174 ItemName : uxcell Split Lock Washer, M10 304 Stainless Steel Spring Lock Washer 25pcs, Black ItemPackageDimensions_Height : 9.1 centimeters ItemPackageDimensions_Length : 1.7 centimeters ItemPackageDimensions_Width : 6 centimeters ItemPackageQuantity : 25 ItemTypeKeyword : spring-lock-washers Manufacturer : uxcell ModelNumber : EoxinDm NumberOfItems : 1 NumberOfPieces : 1 PartNumber : a24070400ux1347 ProductDescription : Description:Made of 304 stainless steel, a replacement for washer in your machine, furniture, or other things. Washers are normally used to distribute loads of threaded bolts, screws, and nuts evenly as the fastener is tightened. Split washers are not to be used in conjunction with a flat washer under the spring washer, spring washer from biting into the component that will resist turning. Specification:Material: 304 Stainless SteelMain Color: BlackInner Dia: 10mm/0.4inch Spring Washer Outer Dia: 16mm/0.63inch Thickness: 3mm/0.12inch