MM Stingray 4HH black – drop D tuner advice

I’d like to fit a drop D tuner to my EB MM 4HH.
I ordered what I thought I needed from a supplier of Hipshot and got the BT1 short, however this does not look like the tuners on my MM?
Also it has 4 screws for fitting which my current tuners don’t have.
Any advice on what I need to order please?
(I’ve also sent a message to Hipshot and waiting for a response)

Photo below for reference. Clearly I need to lose the pick holder 😉

Many thanks.