Nuts, Bolts and Screws

1 pound pecans
1 large box Cheerios
1 medium box stick pretzels
1 tablespoon Worcestershire sauce
1 box Wheat Chex
2 tablespoons salt
1 tablespoon garlic salt
1 pound margarine

Melt margarine in large roaster; pour in remaining ingredients. Set oven at 200 degrees F. Stir every 15 minutes for 1 hour.