... .height:10MM/12.5MM/14MM/20MM(mm) Product Typebarrel nuts MaterialStainless steel, Carbon Steel, Aluminum alloy, Zinc alloy, ... damage.2.As per customers' requirements, in perfect condition.3.Send the parts by express, 3~5 days ... 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