Cadex 23 gauge pins are considered the highest quality available, developed by the same company that markets the highly rated Cadex and Nikle 23 gauge tools. The slightly rounded edges result in less pin deflection in the wood than the cheaper square pins. If you are using 23 gauge in the first place, you are likely working on fine finishing or furniture. Yes, you can buy cheaper pins, but at a fraction of a penny a pin, why compromise on your project?
Cadex headless pins will fit all 23 gauge pinners including Cadex, Nikle, Bostitch, Senco, Porter Cable, Spot Nail, and others (within rated size specification of course).