SAE AS 9821A:2017-01-04

BOLT, MACHINE - HEXAGON HEAD, DRILLED, 1 HOLE, PD SHANK, AMS5643, .500-20 UNJF-3A

THREAD SPEC REVISED TO AS8879, FIGURE REDRAWN TO LATEST STANDARD, NOTE ADDED FOR USE OF EXISTING STOCK, AND NOTES GENERALLY REVISED.