ZINC PLATED NIPPLES Pacific Bay Equipment Sale! from $10.10 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. ZINC PLATED NIPPLESHardened steel combined with zinc yellow chromate plating holdsup to the harshest environments. Zinc plated Hardened steel 4000 PSI max Ranges by thread size If you need help finding the correct size, give us a call!