Install rear clam straps on Beck 550?

I think that’s a question for @chines1

I’d take a WAG that 90% of them are merely cosmetic, just like the faux coffin key flanges.

Then again, there might be some metal reinforcement in there.

There is an angled stiffener panel  under the lip of the rear cowl.  You have to either use machine screws long enough to go through both panels and then use a special angled washer for the nut to seat flat, or open up small access holes that let you get a wrench to the underside of the outer skin.

I was afraid you'd say that. lol. Is one preferable to the other? If the machine screw method is best, do you guys machine those washers or are they available somewhere? Thanks for your response.

How about using riv-nuts?

@LI-Rick, I like the way you think. This never occurred to me and I think you have just solved more than one of my problems!!! Thanks.

@Matt McNeil posted:

I was afraid you'd say that. lol. Is one preferable to the other? If the machine screw method is best, do you guys machine those washers or are they available somewhere? Thanks for your response.

Since the stiffener panel is not a jigged item, the exact angle changes, so we make the spacers to fit the job.   Easy for me to do here, difficult to do remotely.

Just an update... I got longer, polished screws from FiberSteel to accommodate the thickness of my firewall. Great customer service. Straps are installed and look great!