... to M12; BS-5/32, 3/16, 1/4... 2)carbon steel, stainless steel,aluminium 3)RoHS Compliant; ... TS-16949(including ISO 9001 carbon nut furniture nut insert nuts:Material: carbon steel(C1006A,1008A,1010A), ... M3 to M12, inch 5/32, 3/16, 1/4,5/16, 3/8Surface tratement: Yellow/white/black zinc ... M3 to M12; inch 5/32, 3/16, 1/4,5/16, 3/8MaterialCarbon steel, stainless steel and aluminiumHeadFlat ...