flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.313" grip length rivet, blind, 100 deg flush head locked stem, self plugging
Used on c5m fuselage. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.156" grip length cadmium surface treated