... .height:10MM/12.5MM/14MM/20MM(mm) Product Typebarrel nuts MaterialStainless steel, Carbon Steel, Aluminum alloy, Zinc alloy, ... Prevent from damage.2.As per customers' requirements, in perfect condition.3.Send the parts by express, ... products, test instrument etc…RemarksAll parts are not in stock, customization only!Any RFQ, please feel freely ... with you! sell excellent quality barrel nuts in hardware