round nut with drilled holes in side
round nut with lock channel
Base section with round plate connection
brass bolt with round head
brass bolts and nuts with round head
brass screw with round head
equal angle steel with round edge
iron rivet with round head
iron screw with round head
iron vivet with round head
new series vertical drilling machines with round column
nonstandard pressure vessels of rectangular cross section with round angles
reinforced concrete pier with round section