Specification for 100° countersunk head steel bolts (Unified threads & cruciform recesses) for aircraft Bolts, Countersunk fasteners, Recessed-head fasteners, Unified screw threads, Steels, Aircraft components, Air transport engineering, Cruciform-head fasteners, External-thread fasteners, Threaded fasteners, Threaded components, Fasteners,
Dimensions, Protective coatings, Marking, Size, Flushness tolerances, Dial gauges, Designations