M3 -the inside diameter -3mmM5 - the outside diameter-5mm4- means the length is 4mm
Description
M3/M4/M5/M6/8/M10/M12/M16
Material: Galvanized Carbon steel/ Stainless steel
Type : Thick Nuts
M3xM5 x4 means
M3 -the inside diameter -3mmM5 - the outside diameter-5mm4- means the length is 4mm