... Bolt size:M3-M56 3.Bolt material:Carbon steel,iron,stainless steel 4.RoHS,SGS,Bolt We could make ... bolts,lifting bolts,butterfly bolt,carriage bolts etc,welcome for your inquiry,our quotation will made with 24 ... A449 A307 A394 etc. Material:: Stainless steel,Carbon steel,iron bolt AISI 1018 etc. Grade: 4.8-12.9 ... manager: cn1000980415,Mb: 86-139 2575 7720 Dongguan Galvanized Shaft for Machinery Industry