Specification Binding : Unknown Binding Brand : Aceteel Label : Aceteel Manufacturer : Aceteel Model : 1/4"-40 UNS PackageDimensions_Weight : 0.0661386786 PackageDimensions : L:5.0393700736 X W:4.1732283422 X H:0.7086614166 PartNumber : 1/4"-40 UNS ProductGroup : Home Improvement ProductTypeName : TOOLS Publisher : Aceteel Size : 1/4"-40 UNS SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41g3E6UD8dL._SL75_.jpg SmallImage_Width : 75 Studio : Aceteel Title : Aceteel 1/4"-40 UNS Tap and Die Set, 1/4 x 40 UNS Right Hand HSS Machine Thread Tap and 1/4 x 40 UNS Alloy Tool Steel Round Die Weight : 0.1 WeightUnit : pounds