I am finishing the installation of a new top on our 21 touring car. Is the top deck supposed to be fastened to the 2nd and 3rd bows? Where the clamps are in the picture. If so how do you fasten it?
I think there should be an oval head wood screw with the little cupped washer at each bow. The cupped washer spreads the clamping better. Yours should probably be nickel plated or stainless steel.
The bows are held together by the webbing straps tacked to each bow which are within the top pad, then fold the top pad and stitch closed.
The rear curtain is fitted, then place the top cover, stretch firmly, as the top cover is just tacked to the #1 front and the #4 rear bow only.
For the Two-Man style top cover sides, large-headed tacks are placed in #2 and #3 bow to keep the sides from flopping in the wind.
Yes, the top deck gets fastened to #2 & #3 bows where you have the two clamps. I believe the proper fastener is an oval head upholstery nail. Try to get one with a nice long stem as they usually like to fall out after a while.
The large head tacks tend to pull out over time. I used a threaded base of a snap base on my car, then a snap top and cover to finish it off. It looks like a large tack, but it is screwed into place and will never come loose.
By the way, I like to color of your car and the looks of your side curtains...
: ^ )