Used on c47531-007 (19156), antenna, tacan, all-band. 2a thread class right-hand 0.209" thread length fillister head style 32 thread quantity per inch screw captive panel (screw machine) passivate screw surface treated unc thread series
Used on apache ah - 64. 3a thread class right-hand double hexagon extended washer head style 2.274" grip length 24 thread quantity per inch bolt, tension long thread, double hexagon unjf thread series
Used on s-843/trn-44a, shelter, non-expandable. 2a thread class right-hand 20 thread quantity per inch screw captive panel (screw machine) unc thread series
Used on uh-60 blackhawk. 3a thread class right-hand 28 thread quantity per inch protruding tension head titanium 1/16 inch grip variation specification:hi-lok product specification:342, material spec:AMS4928 or AMS4967, finish spec:hi-shear spec 294, heat treat:160, 000 psi tensile (95, 000psi shear ) aluminum surface treated unjf thread series
3a thread class right-hand 0.276" thread length flat chamfer head style 0.500" grip length 32 thread quantity per inch screw machine flat fillister head close tolerance, short thread, offset cruciform cadmium surface treated unjc thread series
Used on spec item. 3a thread class right-hand 0.452" thread length 1.531" overall length 28 thread quantity per inch bolt, eye passivate surface treated round, closed w/shoulder unf thread series