Ok, the garage warmed up above freezing today so I got it installed. Of note, the gasket has an up and down side. Measure from the center of the screw hole to the outside of the gasket. One side is 5mm (bottom) and the other is 6mm) top. I used 3 stainless washers. To do it again ... i'd measure the tread depth and buy an appropriate length screw. I had the radiator mounting screws removed to get at other parts of the engine, which made installation much easier. Use of non permanent thread lock is indicated. See attached thumbnail for torque specification.

 

Do you have any available. Would like to purchase. Not sure how to pm on this site. New member

 

I still have some. PMed.