Advice on sealer for insert after stripped water pump/timing cover bolt hole

Advice on sealer for insert after stripped water pump/timing cover bolt hole. Stripped one of the block through bolts near the water passage for the water pump. Have the hole drilled and tapped for EZ locks which went surprisingly very well. I usually use red rtv for threads in water jackets. But thought about red locktite for the insert itself, they have normal and height heat (260 locktite) Not sure if this is ideal though