Used on B-1. 2b thread class right-hand 20 thread quantity per inch flange wing nut wide flange base makes these one-piece nuts ideal for oversized holes; made of die cast zinc alloy which is corrosion resistant
Used on 4940-01-591-0265. 2b thread class right-hand 13 thread quantity per inch 1/2-13, top lock nuts, ifi 100/107 grade c, zinc plated zinc surface treated