Grip Rite Prime Guard 1210GAB50 Grip Rite Hot Dipped Galvanized Anchor Bolt with Nut and Round SAE Washer 1/2-inch by 10-inch 50 per box 1/2-inch by 10-inch Anchor Bolt Nut and Washer Included, 50 Per Box For Attaching Bottom Plate or Sill Plate to Newly Poured Concrete Foundation Washers and Nuts Included Meets ASTM A307 Specifications