I know that they are not authentic but I am planning to use torx pan head bolts. They appear similar except the shape of the internal drive feature and are more readily available.
And the fact that the torx is something that you can get out!
BC 1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc 1949 GMC 250 project in waiting 1960 C60 pasture art Retired GM dealer tech. 1980 - 2022
