Specification Brand : uxcell BulletPoint1 : [Threaded] - Thread Size: M30; Thread Pitch: 1.5mm / 0.06"; Slot Width: 7mm / 0.28" BulletPoint2 : [SIZE] - 1.77" (45mm) width across flat, 1.26" (32mm) height, 0.79" (20mm) full thread height, Grade: 4.8 BulletPoint3 : [Material] - Made of carbon steel with a blackened surface finish, this hex slotted nut is of high hardness, not easy to rust, deform, wear-resistant and anti-corrosion BulletPoint4 : [Function] - The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener. Fitting for a 6.3x63mm cotter pin BulletPoint5 : [Usage] - Commonly used in industry to secure front wheel bearings or hubs to main shafts on trucks. Suitable for some repair and maintenance in the mechanical industry, shops, garages, household furniture fasteners, etc. Color : Black DriveSystem : External Hex DriveSystem1 : Slotted DriveSystem2 : External Hex ExteriorFinish : Black ExternallyAssignedProductIdentifier1 : 008236072198 ExternallyAssignedProductIdentifier2 : 0008236072198 ExternallyAssignedProductIdentifier3 : 00008236072198 FinishType : Zinc Plated GpsrSafetyAttestation : 1 GradeRating : Industrial ItemName : uxcell M30x1.5mm Hexagon Slotted Nut, Grade 4.8 Carbon Steel Hex Castle Nuts, Black ItemPackageDimensions_Height : 1.38 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 1 ItemTypeKeyword : hex-nuts Manufacturer : uxcell Material : Steel MeasurementSystem : Inch MetalType : Carbon Steel ModelNumber : a22030900ux0138 NumberOfItems : 1 NumberOfPieces : 10 PartNumber : a22030900ux0138 ProductDescription : Description: 1. Made of carbon steel with a blackened surface finish, this hex slotted nut is of high hardness, not easy to rust, deform, wear-resistant and anti-corrosion. 2. The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener. 3. Commonly used in industry to secure front wheel bearings or hubs to main shafts on trucks. 4. Suitable for some repair and maintenance in the mechanical industry, shops, garages, household furniture fasteners, etc.