One of the tricks I have used over the years is to cover the crimp connection where the wire and insulation is with some RTV caulking. I use a version that is made for outdoors use and is somewhat UV stable. Then as has been said, put some form of an anti seize compound on the threads first. Put the spade lug on and then the washer and nut. This will allow the connection to be removed with east down the road if needed. Put a layer of the Scotch 88 down. Then the self fusing tape. Then another 2 layers of the 88 tape.
The reason for the first layer of 88 tape is so you can open up the connection several years down the road. If you use the fusion tape first, it will adhere to everything including the threads of the bolt. This will prevent any easy opening up of the connection down the road. That fusion tape will stick to what ever it touches with time. It acts like rubber cement that is all but impossible to get off of threads.
Learned this multi layering many years ago in my many years building cellular sites around the country. It amazes me just how many professional tower climbers take shortcuts when they weather seal the big 1 5/8 coax connectors on the towers. They don't like to put down that first layer of electrical tape. They say it takes too long. Yet they love it when they get called back to have to repair a connector down the road and get paid time and materials while they fight to get the connector opened up for service.
Even found one company that would seal up the connection up on the tower. Then take a razor knife and slice open the very top of the connector where it ran horizontal. This would allow the rain to collect and seep into the connection. So in about 3 or 4 months, you had to call in a tower crew to see what the problem was. Found out their game with several call backs on the same towers they worked on. So hired another crew to go do an inspection after the first crew left. That was how they got caught.
Anyway, make sure you take the time to seal up your connections.