Penetrating oil first. Then maybe a 1/4 impact driver. A couple taps each direction (tighten and loosen.) If that breaks the first one off then add heat from a fine tip torch on the rest of them.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.