Simply didn't like these.
I started to fit these and managed to snap the spoke on the thread part, and I wasn't over tightening. Later I noticed they bent really easily, meaning the shape was distorted, showing that they really weren't strong enough for the job.
I had to fit three in the wheel, trued the wheel, went out for about three rides to then find the spokes had given up support. So I treated myself to a new wheel. Don't waste your money.