I LOST MY BRINKS KEYS FORTHIS LOCK IF IT STHE ONLY ONE LOOKING LIKE ONE. IF IT IS, MINE HAS A BASE THAT SLIDES OVER TO PERMIT KEY ENTRY AND THEREFORE IS WEATHER RESISTANT BUT I BOUGHT IT ABOUT 15 YRS +/- AGO IN MASSACHUSETTS... LIKELY WAL MART OR ACE OR FORMER NHD THIS AND NEED A NEW LOCK ON A STORAGE CONTAINER AT MY HOME