These keg caps are an alternative closure to a normal keg spear in a D Type keg. The body of the keg cap is made from 304 stainless and can be removed and fitted by hand. The plate for hand tightening is made of Aluminium. They are hand welded and are not a sanitary fitting. Not designed for use with beer. These are ideal if you are using the keg as a storage vessel for something other than beer or if you simply want an easier way to open and close the keg.