I recently put in a new sink for my washing machine and thought I hooked everything up all right but the grey pipe with the little small white thing on it going from my hot water tap to the hot water pipe is leaking as well is the cold am I missing something or am I supposed to glue them together. Thank you erica oh bye the way that's the old bolt your looking at I can't seem to fit the new one on without it leaking.

No, you don't have to glue anything. This is a compression filling. Cranking down harder might do it, but if it don't give the ferule,(the little small white thing) a few wraps of teflon tape and try again. Good luck, Tom

Oh my gosh that worked I went to home depot he gave me some plumbers tape wrapped that little sucker and all went well thanks for the advice.