Up for sale These tabletop fasteners I use in all my table constructions.  They allow for seasonal wood movement when used correctly these can be used for table tops 3/4" to 4" thick.  You get 12 of them.  If you have any question, please email me thank you for looking.
Last photos measurements
A 1/2"
B 5/8"
C 15/16"
D 1/16"