Anyone know what size and thread pitch the brake caliper 19mm mounting bolt is?
 

I’ve being trying to find the 19mm mounting bolt thats for my rear sport (Akebono) calipers, but have had not luck. It’s the bolt that attaches the rear brake caliper to the knuckle. O’Reilly’s wasted my time ordering the wrong bolts, twice!. Advanced auto parts can only get 1, and it won’t be here til Monday. AutoZone said they don’t carry them. Ace hardware didn’t have any either. Any suggestions advice and or reliable sources? Any help is greatly appreciated, thanks in advance.