auto part nylon fastener: 1,Material:nylon 2,Head diameter:13mm Length:13mm 3,weight:0.3g auto part nylon fastener:OrderItemsDetails1materialnylon2head diaeter13mm3length13mm4weight0.3g5CertificateSGS,ISO9001-20006Typenylon screw,nylon nut, nylon rivet 7Characteristiclow thermal conductivity,non-magnetic 8Package1000pieces/bag9Usage automobile and other fields