Specification Brand : Aexit BulletPoint1 : Black oxide finish, pressing thread forming and durable. BulletPoint2 : Bottom of T-Slot Nut Is staked to prevent the stud from protrusion. BulletPoint3 : It is used for T-slot aluminum extrusions to connect other parts. BulletPoint4 : Undersized to fit machine table slot case hardened. BulletPoint5 : Hardness: 23-32HRC Color : Black DriveSystem : Slotted ExteriorFinish : Aluminum,Steel FinishType : Black Oxide GradeRating : grade 8.8 ItemName : Aexit M18 Steel Nuts T-Slot Nut Black Oxide Plated Grade 8.8 T-Slot Nuts Tapped Through ItemTypeKeyword : t-slot-nuts Manufacturer : Aexit Material : steel Material1 : Aluminum Material2 : Steel MeasurementSystem1 : Metric MeasurementSystem2 : Inch MetalType1 : Aluminum MetalType2 : Alloy Steel ModelNumber : modle PartNumber : B01108933 ProductDescription : 1. Black oxide finish, pressing thread forming and durable. 2. Bottom of T-Slot Nut Is staked to prevent the stud from protrusion. 3. It is used for T-slot aluminum extrusions to connect other parts. 4. Undersized to fit machine table slot case hardened. 5. Hardness: 23-32HRC 0 Specification: Product Name: T Slot Nut Package Content: 1 x T Slot Nut Main Color: Black Material: 45# Steel Grade:8.8 Weight: 143g Dimension: 37 x 32.5 x 24mm/1.46-inch x 1.3-inch x 0.94-inch(L*W*H) Thread Diameter: M18 Slot Width: 20mm / 4/5-inch Coating: Black Oxide Plated Slot Depth: 10mm / 2/5-inch ProductSiteLaunchDate : 2018-09-29T06:56:14.850Z Size : Onesize UnitCount : 1 UnspscCode : 31161700