The big forward is manager Gavin Rose’s latest signing after a very busy month which has seen the club now sign seven new players.
There has been a big shake up this summer as the club look to really push on in their second National League south season.
They have won the race to bring Welling striker Mills to south east London as Dom Vose agrees to return for the new campaign.
The 28-year-old Mills scored nine times last season and he came within a game of earning promotion as the Wings fell just short in the Promotion Final.
The Hamlet overhaul has seen a large number of players already sign up.
Defender Richard Orlu, Connor hunte, Kieran Monlouis, Ryan Case and ex-Wealdstone duo Christian Smith and Jeffrey Monakana have signed up.