Not the ones I dealt with! The screws were alloy. Dzus were steel, but the cups were put on with alloy rivets (we didn't use very many, either). Even the nut plates on "blind" assemblies were alloy. What little steel fastners we DID use, were plated, zinc primed, and painted, and the nut plates on "blind" assemblies were alloy. While SOME assemblies HAD to be steel, they were primed, painted, and installed with neoprene or caulking to prevent dissimilar metals touching.
That said - corrosion is a BIG concern onboard a ship. ANYTHING that can be done to protect the ship and aircraft is WELL worth the effort! It's a NASTY enviroment. That's why sailors are taught to paint in boot camp! LOL!
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Today's Featured Article - Oliver 550 Clutch Overhaul Tips - by Greg Sheppard. I got my 1964 Oliver Model 550 (serial 141-139-519) second-hand and used it for several years before the clutch began to slip. After taking up the pedal linkage several times I saw it was going to take more than that. The engine had been leaking oil at the rear seal and I suspected
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