I needed a heim joint for a set of Vortex rearsets. Of course the one I needed was left hand threads so it was 3x as expensive on Mcmaster as a right hand thread. I called Vortex and spoke to Casey. He was extremely helpful and knowledgeable. Even though I was buying a $6 part he treated me as if I was placing a large order. It was nice that they have such a large stock of parts to be able to support what they make and sell.