Galvanizing Holes: Smart Alternative, But Venting Still Matters

Summary for galvanizing holes Discussion

The thread on galvanizing holes asks whether square tube, round tube, and angles in sizes from 60 mm to 3000 mm can be galvanized without drilling holes, since the vendor says drilling 5,000 pieces is impractical. One answer says that if the tubes are straight and open-ended, there are other ways besides drilling: holes serve two purposes, venting/draining hollow sections and providing a way to suspend the parts. That answer notes they regularly process hundreds of open-ended tubes without drilled holes and suggests trying another galvanizer. A later reply from Umesh Dalela says vent holes are a must in hollow sections for galvanizing, and adds that solid fabrications may also need holes wherever zinc could be trapped or blocked. The discussion therefore shows some flexibility in handling, but agrees that venting/drainage requirements still have to be addressed.