Flatcar question for HO Walthers Bulkhead flat

I built a pair of Jaegar Aluminum Loads and placed them onto two Walthers Bulkhead Flats to better hold them down to the track.

I have hauled aluminum in real life and they are chained and strapped very well to the deck. Here I installed the thread to represent “Banding” on the loads but I see no way to create a “credible” securement from the load to the deck itself.

here is a photo to show what I have so far. I am considering pernamently installing the load to the cars.

Thanks for your help and enjoy your day.

What I have sometimes seen, although I cannot say I have seen it in relation to aluminum loads, is that angled pieces are welded to a steel flatcar deck and bracing or chains are attached to those angled pieces
Somes from a bridge you can see an empty steel flatcar where the deck is just covered with the visible (rusted) remains of dozens of L shaped welds on the deck, from loads that were custom attached to the car and then removed.
Dave Nelson

I wished to check out this thread, because I could not recall a recent offering of a bulkhead flatcar by Walthers.
And…so…the chosen car, a 47 cord bulkhead pulpwood car, is the road’s getby, untill more 62’ Thrall bulkhead cars, may be located.
O.k, that can work, if the proper dunnage is used(timbers), load securring chains, or binders, can be welded to the car, (to prevent theft).
The angled deck, is vented, to provide runoff for rainwater.
I’m not trying to be picky, heck the car would make more hauling one-hundred ton of slabs, than seventy-five ton of pulpwood.
Its just that this pupose built car, doesn’t need chains, or binders to do the job it’s built to do.
I have in front of me the Southern 142246, version of this particular car, and find it to be a well built and cool looking model, however, I just wished to answer your query as to why their is no load securing device.
Thanks for the pics, they are clear, and add to the variety of the day.
Enjoy Your Hobby!
ACJ.

wooden blocking and scale chains would work.