2a thread class right-hand 0.270" thread length fillister head style 0.037" hole diameter 48 thread quantity per inch passivate screw surface treated unf thread series
2a thread class right-hand 0.310" thread length fillister head style 32 thread quantity per inch slotted head passivate surface treated unc thread series
3a thread class right-hand 0.316" thread length flat countersunk head style 0.938" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.126" grip length sleeve orange color N0.32246 fed std 595 anodize stem surface treated
Used on vor/vortac facility plastic antenna shelter 16 ft cone. one plain stud 6.625 in lg by 5/16 dia; threaded /2 in each end 18 ghreads per in; two hex nuts 1/2 in across flats by 1/4 in thk; seven washers 1/16 in thk by 3/8 id by 3/4od; reference data: drawing d-5288-4, item M3, vor/vortac facility, plastic antenna shelter, 16 ft cone, door details
3a thread class right-hand 1.012" thread length hexagon head style 1.485" grip length 18 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.842" thread length hexagon head style 0.485" grip length 20 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.451" thread length hexagon head style 2.735" grip length 32 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.544" thread length hexagon head style 1.000" grip length 28 thread quantity per inch tensile strength at room temperature passivate surface treated unf thread series
3a thread class right-hand 0.514" thread length hexagon head style 1.235" grip length 28 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.514" thread length hexagon head style 1.485" grip length 28 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.514" thread length hexagon head style 2.485" grip length 28 thread quantity per inch passivate surface treated unf thread series