Ammo Box Can Lock Hardware Kit .50 Cal, Fat 50, 30 Cal, 20 mm, 40 mm (10 Count) Ammo Can and lock in picture not included Works on 50 Cal,Fat 50, 30 Cal, 20 mm, 40 mm ammo cans Will work with medium size locks as large as 1/4" lock shackle Kit includes: The Stainless Steel stud, One large washer, One small washer, One neoprene washer , One Grade 8 nylon locknut, and instructions.