... .Size:m6-m24 2.Standard:DIN,ANSI,BSW,ISO,JIS,UNI etc. 3.Surface:plain,zinc plated,black oxide,hot dip ... . 1.Size:m6-m242.Standard:DIN,ANSI,BSW,ISO,JIS,UNI etc.3.Surface:plain,zinc plated,black oxide,hot dip ... small boxed,gunny bag,special small boxed etc. Hex thin nut