Working on the 54 Hudson Hornet over the last couple days as my wheel cylinders were leaking. I thought I had cross referenced them correctly. The only thing I see that concerns me is the depth I can screw the brake hose in on the new wheel cylinder, barely half way. My old wheel cylinders allowed the hose to screw all the way in with a copper washer. Now the inside of the new wheel cylinder looks like it would seal with my hose but I’ve never had threads exposed before on a wheel cylinder. Is this safe to do or is it a problem & I need to find other wheel cylinders?