Specification Brand : Aexit BulletPoint1 : Product Name : Spring Washer;Size : 4 x 6 x 1mm/(Inner Dia.*Outer Dia.*T) BulletPoint2 : Material : Steel BulletPoint3 : Color : Silver Tone BulletPoint4 : Weight : 7g BulletPoint5 : Package : 50(±2%) Pcs x Spring Washer ExteriorFinish : Alloy Steel ItemName : Aexit 50 Pcs Nuts 4mm Inner Dia Steel Split Lock Panel Nuts Spring Washer ItemTypeKeyword : panel-nuts Manufacturer : Aexit Material : Alloy Steel Material1 : Metal Material2 : lead MeasurementSystem1 : Imperial MeasurementSystem2 : Metric MetalType : Alloy Steel ModelNumber : modle NumberOfPieces : 50 PartNumber : f190413ae027962 ProductDescription : A split washer or a spring lock washer is a ring split at one point and bent into a helical shape. This causes the washer to exert a spring force between the fastener's head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more and resistance to rotation. 0 ProductSiteLaunchDate : 2018-09-27T03:04:57.429Z UnitCount : 1 UnspscCode : 31161700 WasherType : Split Lock