Most all readily available ss or cres bolts are 303 free machining to
make them cost effective to make. The free machining is obtained by the
addition of a small percentage of lead which has little effect on any
other properties except yield and shear which end up being slightly
lower than mild steel if I remember right.
Ron
Pat Horne wrote:
> I had a boat for almost 20 years. It sat in a lake the whole time. I had
> to overhaul the Evenrude engine twice, once when the auto oiling went
> out and ate the crank and cylinders, and one when the flywheel key
> sheared and burned a hole in one of the pistons. As I recall all the
> fasteners were stainless. I had no problem getting the fasteners out,
> and found no corrosion anywhere on that power head either time.
>
> There are any number of "stainless" steels and I have no idea what type
> was used in that engine. Maybe I should go down and buy a bolt or 2 and
> try to determine what type it is.
>
> Peace,
> Pat
>
> Mike H. wrote:
|