SLOT HEAD SCREWS THREADED RIVETS AND SQUARE HEAD SCREWS &times; 20, SLOT HEAD SCREWS THREADED RIVETS AND SQUARE HEAD SCREWS &times; 20, SLOT HEAD SCREWS THREADED RIVETS AND SQUARE HEAD SCREWS &times; 20, SLOT HEAD SCREWS THREADED RIVETS AND SQUARE HEAD SCREWS &times; 20