68 Yenko Camaro hood pins

[SS427]

Does anyone know specifically what hood pins/plates were used on the fiberglass 68 Yenko Camaro hoods? I have heard they were generic Cal Customs or something equivilant or whatever was conveniently available to Don at the time. Based on the imprint marks on the hood mine measure about 2 1/2" in diameter with the screw holes being 2 1/16" across the face. The hole in the core support measures just under 1/2". I have a set of Moroso plates and 1/2" pointed pins but the pins will not fit in the core support and the screw mounting holes only measure 1 3/4" across the face. Any help greatly appreciated. If anyone has an NOS set with these measurements I would be interested in them.