Grade 5 hex king bolt Surface :Zn yellow Machined and ... in fastener field 1,Name: Grade 5 hex king bolt;Hex king bolt;Grade 5 bolt2,For the similar bolt,what ... kind of bolt: Grade3.6,4.6,4.8,5.6,6.8,8.8,9.8,10.9,12 ... .C,Gr.D,Gr.36,Gr.58,1010,1015,1016,1020,1045,etcAlloy steel4130,4140,G51150,etcStainless steel201,202, ... machined hardware fastener ,especially the cutting/turning parts. Grade 5 hex king bolt