KPMI, Rocker arm tower stud kit

5/16-18 UNC to 5/16-24 UNF. Studs are made of heat threaded aircraft alloy steel. 180.000 psi yield strength. Rolled threads. Black oxide treaded for corrosion resistance. Replacement for the stock rockerarm shaft to rocker arm tower bolts. The one time installation of these studs help prevent damage to the rocker arm tower bolt threads and consequent damage when rocker arms come loose. Especially advised when running high lift cams. Note: See 587242 for matching 4-pk KPMI aircraft alloy steel rocker arm tower 5/16-24 nut. Fits: > 17-20 M8