When I was 16 in 1969 my dad told me to change the brakes shoes on his 1960 Valiant. The driver's side went ok but I struggled to get the lugs off on the passenger side. I finally with brute strength got the first bolt off and proceeded to do the next only to have the same problem so again with brute strength I got that one off. I went to my dad and asked if they were hard to loosen. He said sometimes and then asked, why? I said because I snapped in half 2 lugs. He then said what way did you turn it? I said the normal way, counter-clockwise. He wasn't happy but informed me they were L.H. threads