Neither stainless nor brass will react with the tannin in oak.Freetochat":2og1cr1h said:I know it is always advised to use brass screws in oak and not ordinary steel, but does that include stainless steel?
I guess "made to price point" has a lot to do with it, I have a stock of most sizes from Screwfix as a means of economically avoiding the 'Hunt the Screw' bind in the middle of a quick job. I would be nervous of relying on their integrity where safety was a factor though. A recent 'top-up' of some sizes with a bargain purchase from Lidl resulted in better shear strength items.ike":3aytuow0 said:...snip...My theory is it's a combination of an agressive thread profile with a small root diameter, and the material work-hardening when the thread is formed, and the material not getting or not suitable for subsequent remedial heat treatment. I suspect it's the same issue with the SS screws.....snip...Ike
I'm sorry, but I'd just like to clarify whether you had a problem with stainless in oak?LyNx":3mlgf2n5 said:To add a twist. I have had this happen to oak and red cedar, both require stainless screws. One brand didn't effect the timber but another brand did.
Lucky the brand of screws that did blacken the cedar was out of sight. Andy