Stainless steel bolt 1, spec.: 12-50mm, wall: 0.8-2.0mm 2, ... ,AMSE 3, material: INOX AISI304,304L,316,316L Stainless steel bolt 1, The material can be SUS304,304L,316, or 316L ... material in security of hygiene compared with others such as plastic, iron and copper and can provide a high resistance to ... government buildings, classy hospitals, star hotels water supply projects. hex bolt