3b thread class right-hand 18 thread quantity per inch drilled for locking device two 0.050 in. dia holes drilled through opposing corners, parrallel to each other, at 90 deg angle to center line of hole passivate surface treated
3a all ends thread class 3.205" overall length 6 bolt hole quantity 12 all ends thread quantity per inch anodize body surface treated male coupling half un all ends thread series
Used on aircraft application. 3a 3rd end bulkhead thread class 12 3rd end bulkhead thread quantity per inch connection style flared all ends; material: steel comp 12L14 or steel comp 1010 cadmium surface treated unj 3rd end bulkhead thread series
