Stud nut is used with the firmware.
Nuts are parts of machinery and equipment will be closely connected.
Nuts are parts of machinery and equipment will be closely linked through threaded inside, the same size nuts and bolts to connect together, such as M4-P0.7 nut only with M4-P0.7 series of bolt connections (nut in, M4 refers to the inner diameter of the nut is about 4mm, 0.7 refers to the distance between the two screw thread 0.7mm); nut is a nut, bolt or screw fastening screw together to play the role of the parts, all the manufacturing machinery a component must be used according to the different materials, divided into carbon steel, stainless steel, non-ferrous metals (such as copper), and other major type.
Bolts: mechanical parts, threaded fasteners with a cylindrical nut. Consisting of a head and the screw (externally threaded cylinder) for a class of two-part fastener is required and the nut for fastening two parts with hole. This connection type called bolt connection. As to unscrew the nuts from the bolts, but also so that the two parts separate, it bolted belongs detachable connection.