We are offering stainless steel fastener likehex head boltssquare head boltscarriage boltssocket head cap screwslotted hex head boltst - head bolts nutstypes :hex nutslock nutssquare nutshex nylon insert lock nutsdome cap nutsflange nuts washerstypes : plain washers lock washers - helical spring lock washer - internal - external tooth lock washer stainless steel iso metric, bs, un or as requiredaisi 304 & 316 standards : size range :iso m3 to m16din 1/8" to 5/8"is length range :bs 6 mm to 150 mmansi 3/8" to 6"as per drawing or sample.