Two knuckle 3.5" x 3.5" Lift Off Hinges are specified and priced and sold per each. All hinges have template screw hole locations for use with either wood or hollow metal doors and frames. All pins are machined from high grade 304 Stainless Steel material and are affixed to the bottom leaf. All finials (optional, please call for details) are threaded into the barrel of the hinge. All hinges are furnished standard with button finials and solid brass phillips head, type "A" tapping screws. #12 Machine Screws for 13-4040/2 and 13-4545/2 available upon request, at additional cost. All two knuckle hinges are handed. Be sure to specify hand of hinge when ordering. Available in 29 finishes, please view metal finish options below.