Both at Home Depot as well as Lowes you can find door strike plates in various designs for different doors. A Home Depot or Lowes door strike plate would be a good choice if you're looking for something affordable and durable, and since they carry an array of different styles and materials, it shouldn't be too difficult to find something appropriate for your needs. At both of these stores you can find units in brass as well as nickel for front doors and sliding screen doors. When you pick out a strike plate for your door you want to make sure that you carefully measure your door frame and determine whether or not the strike plate will measure up to the latch and bolt on the existing lock. If not, you really have to get a new model since it has to match perfectly in order to fir correctly. 
Defender Security Standard Deadlatch Door Strike Plate - Brass Plated
"This strike is constructed from 15/32 In. thick steel and comes plated in brass. It should fit all standard residential doorways. Comes complete with fasteners for a quick and easy installation. Used on wood door jambs. Fits all standard residential door ways. 15/32 In. thick steel" Price: around $3 Can be found at homedepot.com 
First Watch Polished Brass Security Latch Strike Plate
"Fits Standard Size Doors. Strengthens Or Repairs Wood Jambs. Improves Security With 3in. Screws. Security Latch Strike" Price: around $6 Can be found at lowes.com Both at Home Depot as well as Lowes you can find exterior door strike plates that are low priced and available in various sizes, all to make sure that you can find a unit that fits your particular door as well as your preferences when it comes to materials and style.
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