Descriptors | External-thread fasteners, Designations, Flushness tolerances, Cruciform-head fasteners, Aircraft components, Size, Threaded fasteners, Fasteners, Air transport engineering, Dimensions, Dial gauges, Bolts, Unified screw threads, Protective coatings, Countersunk fasteners, Threaded components, Steels, Marking, Recessed-head fasteners |