What's this bracket on sway bar mount for?

[BillJag (Bill Bilotti 1966 S1 OTS (in boxes))]

I don’t remember what the heck this 90 degree bracket with the hole in it is for. I am pointing to it with a file in the pic
There’s one on each side
Anyone know?
TIA

[WWayman (Bill 1970 S2 OTS)]

Brake hose goes in there