These are 18-8 stainless steel knurled pins made to an electronics customer's print. They measure approximately .800" in length at a diameter of .118". Of-course the only tricky requirement is the diamond knurling of .150" at each side that is intended to bite into the plastic setting. In order to increase the diameter at the knurled ends and allow for better locking into the plastic the factory adjusted their method to allow for very aggressive knurling, thereby pushing the material further and increasing the overall diameter at both sides.