I was a little surprised when I received these fasteners as all the eights I've used in the past have a 3 /4 inch and at the other end had a 5/8 inch diameter element. . They are 5/8 in diameter on both ends, which was unexpected. Also, the countertop finish was rough, which is only a visual issue. However, in my application they worked well and their performance was just great. Next time I order this type of equipment I will take a closer look at the dimensions and order 3/4" - 5/8" units.