5/8 - 18

G. WHALLEY

5/8 18 UNS SPECIAL THREAD RING GAGES .625 GO NO GO P.D.'S = .5855 & .5820 .6250 - DW12083RD

REGAL

5/8 18 NF 3 LEFT HAND THREAD RING GAGE .625 NO GO ONLY P.D. = .5859 L.H. CHECK - DW7625BU

VTG

5/8 18 UNJF 3A PREPLATE VERMONT THREAD RING GAGE .625 NO GO ONLY P.D. = .5842 - DW7059KW

PONAM

5/8 18 UNJF 3A PREPLATE THREAD RING GAGES .625 GO NO GO P.D.'S = .5873 & .5846 - DW6927KW

GTD

5/8 18 NF 1 THREAD RING GAGES .625 GO NO GO P.D.'S = .5873 & .5816 UNF-1 TOOL

PD CO.

5/8 18 UNJF 3A BEFORE PLATE THREAD RING GAGE .625 GO ONLY P.D. = .5877 BP B/P