need to find studs and spacers for latham wing plate to bravo drive
 

i need to find or make my own studs and spacers to install a latham wing plate onto a bravo drive, i have 1 or 2 studs and spacers but missing the rest. i can use the existing ones as a template for length. can i go buy a generic stainless bolt that is threaded all the way through and chop the head off and be ok or is there a particular grade of stainless i need to be using? or does anyone have any spares?