2000 Toyota Tacoma Wheels Problems

I WOULD LIKE TO MAKE YOU AWARE OF A PROBLEM I RECENTLY HAVE HAD WITH A 2000 TOYOTA TACOMA PICK-UP. I HAVE 15000 MILES ON THE TRUCK AND RECENTLY ON A LONG ROAD TRIP I RECEIVED A FLAT DUE TO A NAIL ON THE HIGHWAY. IN CHANGING THE TIRE I SNAPPED 2 LUG STUDS. NOW I HAVE OWNED TRUCK FOR 20 PLUS YEARS AND HAVE NEVER SNAPPED A LUG OFF A WHEEL. I HAD IT SERVICED AND WAS TOLD IT WAS DUE TO TOO MUCH TORQUE AND STILL FIND THIS HARD TO BELIEVE. I CANT IMAGINE THAT I COULD GIVE THIS THAT MUCH TORQUE WITH A TIRE IRON TO SNAP OFF THE STUDS. I FEEL IT IS POOR QUALITY STEEL OR A FAILURE IN THE STEEL DESIGN ITSELF. I AM VERY CONCERN FOR FUTURE LUGS BREAKING WHEN TRAVELING AND FEAR A MAJOR SAFETY HAZARD. PLEASE LOOK INTO THIS MATTER AND ADVISE ME IF YOU HAVE RECEIVED SIMILAR COMPLAINTS AND WHAT CAN I DO TO PROTECT MY FAMILY AND ME. THANK YOU.*AK