3a thread class right-hand 0.578" thread length hexagon head style 1.428" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
Used on doorbell dive. 2a thread class right-hand 1.250" thread length button head style 16 thread quantity per inch coating is tiodized unc thread series
Used on coupling shaf. 3a thread class right-hand 1.140" thread length double hexagon extended washer head style 18 thread quantity per inch heat treated to 180, 000 psi ultimate tensile strength passivate surface treated unjf thread series
Used on driver's vision enhancer - 12461117. 2a thread class right-hand 0.438" thread length flat chamfer head style 20 thread quantity per inch material is steel corrosion resisting 303 unc thread series
Used on F-16. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 1.344" grip length 10380 single pounds per square inch shear strength passivate mechanical lock surface treated