Thank you Randy.
Yes I would like to get them from you.
I need to find out from the plumber whether he wants to use 3 inch or 4 inch.
Should I email, private message, or call you to find out how much they are and how much the shipping is.
I would get 3 of whichever length. (One spare just in case of accidently overtightening.)
Let me know how to best contact you regarding them.
Many thanks to you and everyone who helped me with this.