Our Gas Tubes are Melonite-treated for increased corrosion resistance, and shipped with a REAL stainless steel roll pin. (Not those one-time use, c-shaped, spring pins that everyone else uses.)
Take your time when installing the gas tube rollpin. Using a starter punch with a brass/Delrin mallet, tap firmly, but not over-aggressively. (Our pins can be tight.) Finish seating the rollpin until equally flush on both sides with a rollpin punch.