A method of manufacturing a coated threaded fastener wherein the coating acts as a contaminant mask and the coating is applied as a dry powder mixture including a fluoropolymer resin, an inert filler and a coloring pigment. The vapor barrier is formed from a plurality of spherical buoyant members. The cooling body includes a bottom plate attached onto the fixing seat and a plurality of cooling fins that are interspaced to each other and are attached to the bottom plate, in which a fixing hole is arranged at one side of the bottom plate, and an accommodating space is configured at the cooling fins in corresponding to the fixing hole. An antenna conductive element is embedded within, runs alongside, or is woven into a flexible strength member to form the lanyard antenna. If a new current key is introduced, the prior current key can be used to decrypt the list of keys, the prior current key can be added to the list, and the list can be re-encrypted using the new current key.