1)
What are "ha'Gulos ha'Kosaros"?
1.
Metzudas Tziyon: They are the bottom halves of the crowns. Malbim (Melachim I, 7:20) - the crowns consisted of two Gulos, i.e. half-balls.
2)
What is the meaning of "veha'Gulos ha'Kosaros Al Rosh ha'Amudim Shetayim"?
1.
'Rashi': There were two Gulos, one on each pillar.
2.
Malbim (Melachim I, 7:20): There were two Gulos, which comprised one crown, on each pillar.
3)
What are the "Sevachos"?
1.
'Rashi': They are the chains mentioned above (3:16). You are forced to say so, for no where does it say here or in Melachim [that Chiram made] chains!
4)
Did the Sevachos cover the Kosaros?
1.
'Rashi': They covered the interior of the crowns.


