WAVE PLATE HEAD SCREW 1.ISO,ANSI,JIS,DIN,BS& non- ... :4.8 ,6.8,8.8,9.8........ WAVE PLATE HEAD SCREW,DOUBLE HEAD SCREW,KNURLED HEAD SCREW A good ... ,H65,H68...Aluminum is good Aluminum,R200...Meanwhile,we can use other materials accordingto customer's demand .SizeThe Diameter :Generally ... s request are available .5) Payment:Escrow,It is warranted to use In Alibaba custody. T/T. 30%Deposit prepay,70% balance ...