Has 4 dimples on head, designating metric thread
A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.
NSN 6645-00-153-3834
NSN 2925-01-459-8093
NSN 5950-01-114-7081
NSN 6685-00-616-2448
NSN 5935-01-445-6323
NSN 4140-01-463-3982
NSN 5960-01-539-1956
NSN 5925-01-420-4033
NSN 5945-01-644-9425
NSN 6685-01-418-0925
NSN 6650-01-152-0665
NSN 6240-01-301-5412