J Bolt, Fits Brand Vulcan Hart, For Use With Mfr. Model Number GH3/72, GH3/72C, GH3/72S, GH30, GH30C, GH45, GH45/72, GH45C, GH56, GH56S, GH6, GH60, GH60/45, GH60/72, GH6045C, GH60T, GH60T/45, GH60T/72, GH6C, GH6S, GH6T45C, GH72, GH72/45, GH72/45C, GHCB40, GHCB40C, GHM45, GHM45/72, GHM6, GHM60, GHM60/45, GHM60/72, GHM60T, GHM60T/45, GHM60T/72, GHM72/45, HCB040, Type 4-3/8 in L, 1-7/16 in W, 11/16 in H