There is again a part with hollow studs which seems to have a closed stud version or is wrong made with the hollow studs:2582.dat Hinge Panel 2 x 4 x 3 & 1/3
The pictures of the '90 space shuttle instructions indicated that the closed studs version exists :1682 Space Shuttle Instructions
The pictures of the '90 space shuttle instructions indicated that the closed studs version exists :1682 Space Shuttle Instructions