... 9001 round nut stainless steel wheel nut :Material: carbon steel(C1006A,1008A,1010A),stainless steel (304,316) aluminium(5052,5056)Head type Flat head, small/reduced head, csk headBody ... , 3/16, 1/4,5/16, 3/8MaterialCarbon steel, stainless steel and aluminiumHeadFlat head,small head,countersunk head, flat hexagon headBodyRound,knurled,semi-hexagon,full-hexagon,UsageThe best ...