Syringe Button Screw, (A-dec® #23.1193.01) (pkg of 5) Fits A-dec® Syringes produced 1995 & later Package of 5 A-dec® is a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.