... the thread below 20mm. Typical applications: Assembly with air tools, cylinder block bolts, ring gear bolts, transmission shaft bolts, and ... block, rocker arm studs, ring gear bolts, frame bolts, shock absorber bolts.YST-272 1. Temperature resistance to 450 ... cylinder head double thread, and bolt of the diameter below 36mm.Typical applications: Camshaft sprocket bolts, crankshaft bolts, idler bearings ...