Re: 352 port screens
The screens don't use any attachment hardware.
The screens are labeled "outside" on one side,
Open the side window (nautical term is 'portlight'),
Go outside on deck,
Gently insert the screen between the outer frame and the rubber gasket with the "outside" label facing out. The small tabs and the raised edge around the screen do a pretty good job of holding the screen in place.
The screens can be left in place when the port is closed. Like everything on a boat, the sun's UV will degrade the plastic screens so you might consider removing them if away from the boat for extended periods of time.
Headed for Ludington and points north this Thursday for an 18 day cruise. Hope you are enjoying Wanderlust.
`99 Beneteau Oceanis 352, #282 WiTCHCRAFT
Sailing Lake Michigan and the Great Lakes