I am a mechanic. My intended use for these is not the normal bulletin board use. I bought these to backprobe wiring harnesses in automobiles. They are sturdy and have held up to this kind of use. I am able to attach my measurement leads to them and they don't bend or pull away. They worked out as a nice inexpensive tool and were easy to go and pickup at my local staples and was able to continue with my work just a few minutes later. I am sure they would work just fine on a bulletin board as well.