Specification Binding : Misc. Brand : Aceteel Label : Aceteel Manufacturer : Aceteel PartNumber : No 4-40 UNC ProductGroup : Home Improvement ProductTypeName : TOOLS Publisher : Aceteel Size : No 4-40 UNC SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41g3E6UD8dL._SL75_.jpg SmallImage_Width : 75 Studio : Aceteel Title : Aceteel No 4-40 UNC Tap and Die Set, 4 x 40 UNC Right Hand HSS Machine Thread Tap and 4 x 40 UNC Alloy Tool Steel Round Die