try woodys site

your in concord nh. plenty of sled shops around!! depending where you get your studs ,some times you get a drill and template with your order.

seprately,drill 9-10 bucks temp.about the same. or try the snowmobile store,bucks is having a sale!(or was?)i picked up 96-1.175" studs nuts AND backers for $116.00 + shipping

5/16 not 7mm best deal i could find.