... , GB6170, GB6175, GB6172, JISB118, etc;2. Thread: coarse, fine or extra fine (e.g. M10-1.5, M10-1.25, M10 ... precise moulds and punch pins;6. Thickness: standard, thin, thick (heavy) or extra thick;7. Other names: Hexagon nut. Stainless Steel Hex Nut