Applied some UHMW tape to the wear surfaces of the latch angles.

The adhesive is pressure sensitive, so it requires a firm press with a smooth, rounded object to achieve good adhesion with the angle. The change in color makes it easy to see when it's firmly adhered.

...like this. :-)

Both angles have been faced with UHMW and are ready for riveting.

Also, I've been making progress curing some of the issues with the heat treat oven. First fix was to add retainers to prevent these heating elements from coming out of the grooves at the back of the oven.

I filled the slots (through which the retaining brackets had been installed) with refractory mortar.

Also made the last two doublers. Here's one of them.