Yes, NPT(aper) and NPS(traight). OP's link in post #1 specifies "S". His other thread didn't specify which 1/8 thread for the caliper, but he refers to it as "NPT". The NPS threads were used on GM automatic trans oil cooler line fittings and sealed with crush washers. The threaded shank on that part looks long, they would prolly work, assuming it didn't bottom out in the caliper.