A563 GRADE "DH" HEAVY HEX NUT
Catalog No. Bolt Size F G H
inch mm inch mm inch mm inch mm
 HHN12 1/2 12,70 7/8 22,23 0.969-1.010 50,27 31/64 12,30
 HHN58 5/8 15,88 1-1/16 26,99 1.175-1.227 61,01 39/64 15,48
 HHN34 3/4 19,05 1-1/4 31,75 1.382-1.443 71,26 47/64 18,65
 HHN78 7/8 22,23 1-7/16 36,51 1.589-1.660 82,52 55/64 21,83
 HHN01 1 25,40 1-5/8 41,28 1.796-1.876 93,27 63/64 25,00
 HHN118 1-1/8 28,58 1-13/16 46,04 2.002-2.093 104,01 1-7/64 28,18
 HHN114 1-1/4 31,75 2 50,80 2.209-2.309 114,76 1-7/32 30,96

 Material:: Steel galvanized per ASTM A153

All bolt and nuts meet requirements of ANSI C135.1