A:AnswerYou will need an adapter to use the iPad with this monitor. You would need an adapter to the HDMI port on this monitor. This website will help you find the right adapter for your iPad: https://support.apple.com/en-us/HT202044
A:AnswerUnfortunately, our list of parts does not include the screw or its size. You might want to check with the HP support team to see if they have more information.