Sound Metal Products now has a supply of M-98 guad screws in one size...long enough for the rear and enough thread for the front,,,cut 'em off to fit.'

The heads are oversize with a shallow screw slot to line up...then you're on your own for final slot. They are longer than needed and are made of 4130 alloy heat treated to 36 Rockwell....tough, but still can be shaped and filed.....$12.95 per set PPD