The Black and Whites’ trio have shone this season after establishing themselves in the first-team having all come through the club’s academy set-up in recent years.
Bowden and Green are both England Knights representatives, have already racked up 142 games between them for the club since making their debuts in 2012, whilst Hadley played the first of 37 games the following year.
“We’ve been really impressed with their progress as individuals and as a collective they have started to push the club forward,” he said.
“At clubs such as Wigan and St Helens, they endeavour to build success with local lads and that is what we want to do here. I believe with the likes of Chris, Dean and Josh alongside other Hull boys such as Danny Houghton, Scott Taylor and Jamie Shaul amongst others, we can emulate that.
“From day one, I have aimed to fill the team with local players with an injection of overseas internationals and I think we are starting to see that form.”