This hinge is from our Stainless Steel heavy duty line of exterior shutter hardware and has a 1/2" sleeve diameter. it comes as a pair and includes mounting screws. It is used with our Stainless Steel 1/2" pin diameter pintel sets to make a complete hinge set for one shutter. You will need to order a quanity of "2" pair of these hinges and 2 pair of the 1/2" pin diameter pintels for 1 complete window (2 shutters).