Specification Brand : flexman BulletPoint : 10pcs/lot M41T56M6E M41T56M6F M41T56 SOP8 BulletPoint1 : Made from high quality carbon steel, these nuts have high hardness and a long service life BulletPoint2 : Surface is plated with nickel for better performance. BulletPoint3 : There are total 50pcs nut that you can use for many BulletPoint4 : They are simple to use and convenient to connect aluminum to other parts BulletPoint5 : These hammer head nut are mainly used for European standard aluminum extrusion Color : 20-M5 DriveSystem : Slotted ExteriorFinish : Silver FinishType : Finish IncludedComponents : inc ItemName : 50Pcs Nickel Plating Carbon Steel Nuts, High Hardness Sliding T Slot Nut for European Standard Aluminum Extrusion Connection of to Other Components(20-M5) ItemPackageDimensions_Height : 12 centimeters ItemPackageDimensions_Length : 35 centimeters ItemPackageDimensions_Width : 25 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : t-slot-nuts Manufacturer : flexman Material : Material Material1 : Aluminum Material2 : Steel MetalType1 : Aluminum MetalType2 : Carbon Steel ModelName : Hilitand4rg5mpqbez ModelNumber : Hilitand4rg5mpqbez NumberOfItems : 1 PartNumber : flexman10vd98seow-02 PowerSourceType : Manual ProductDescription : Specifications: Material: Carbon steel Surface Finishing: Nickel plating Quantity: 50pcs