Interior door - Loose hinge

[bronzea5]

I've got a problem of a loose hinge on an interior door. The screws have come away from the door. The screws look rusty and old so need to be replaced with new screws.

What size head diameter and length of screw would be suitable for a standard sized interior door?

I've measured the width of the door frame. Its about 2.5 inches wide.

 

[big-all]

often no7x 1 1/2"[imperial screws fully threaded]
measure the head should be about 7.5-7.75mm

 

[DiyNutJob]

Take a screw out and measure it.

 

[bronzea5]

often no7x 1 1/2"[imperial screws fully threaded]
measure the head should be about 7.5-7.75mm

Thanks.

Do you know if they are sold in low quantity anywhere? As I only need screws for one hinge. And most places sell boxes of screws.

I had a look on accu.co.uk but I could only see Torx or Ponzi type screws.