Ditto on the Permatex. The stuff I used is called "High Tack Gasket Sealant". It had the no. 98H on the label, and also "item # 80062".
It seals the threads on the screws, and also never dries completely out, in case you ever need to remove them again. I used it on my F-350 and sealed the entire gasket with it.


Rich
1947 Loadmaster
1947 Chev. Loadmaster
1959 Chev. Viking 40

Life is short--eat dessert first!