... ),stainless steel (304,316) aluminium(5052,5056)Head type Flat head, small/reduced head, csk headBody type: round, knurled/ribbed, ... :1) Round body, plaing, with flat head 2) High crimping force 3) Screw length can be varied 4) Just- ... , 3/8MaterialCarbon steel, stainless steel and aluminiumHeadFlat head,small head,countersunk head, flat hexagon headBodyRound,knurled,semi-hexagon,full-hexagon,UsageThe ...