Stanley 1-9/16 Inch Outdoor Standard Shackle Padlock Pack Of 5 CD5690 Series 1-9/16 inch outdoor graded standard shackle grade 4 padlock pack of 5 keyed alike with superior corrosion resistance. Features include a double locking hardened steel shackle, solid brass body, anti-pick pin, M1 keyway and stainless steel springs. Contains seven keys. Tested under ASTM F883-09 guidelines.