Manufacturer Part Number: 60033|Slot Width|Type|T-Slot BoltSlot Width (Inch)|7/8Slot Width (Decimal Inch)|Head Height (Inch)|9/16Head Height (mm)|Head Width (Inch)|1-1/2Head Width|Length Under Head (mm)|Length Under Head (Inch)|20Material|SteelMaterial Grade|C-1045; 5Thread Fit Class|Class 3Finish|UncoatedThread Size (Inch)|7/8-9Thread Size (mm)|Thread Standard|UNCThread Length (Inch)|4Thread Length (mm)|Thread Length (Decimal Inch)|4in; 4.0inFastener Standard|System Of Measurement|InchProduct Service Code|UNSPSC Code|