Hood latch pin mount bolt question

what bolts are needed to mount the male hood latch pins to the bottom of the 1984 Corvette hood?  I have a new (to me) 1984 Corvette, but there's been some previous work done to it.  There are no hood latch pins on the hood to connect to the hood latches on the body.  I found some hood latch pin (male) mount plates, now I just need to know what kind/type of bolt is needed to mount them to the hood.  Any help???