outlet conduit clamps welded

TP437 Eaton Crouse-Hinds Square Outlet Box, (2) 1/2″, (2) 1/2″, (1) 3/4″ E, 4″, Conduit (No Clamps), Welded, 2-1/8″, Alloy, (6) 1/2″, (3) 1/2″, (1) 3/4″ E, 30.3 Cubic Inch Capacity