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So you're looking at cold room panel connectors, and basically the big question is whether these eccentric hooks are the right fit, and they really are for medium to large-scale indutrial refrigeration setups where you're working with sandwich panels form 10cm up to 20cm thick — the hook itself actually scales proportionally as panels get thicker, which matters a lot for maintaining proper sealing on those thicker installations.
It's a zinc alloy PXG-A or galvanized steel option, depending on what you prefer, and they're welded directly onto the panel edge which gives you a much more rigid connection than some clamp-style systems we've seen on the market, though honestly if you're doing small DIY cold rooms this might be overkill since the tooling and welding setup isn't trivial.
We've been supplying these for years now, and most buyers go with the original galvanized finish because of that it holds up better in the high-moisture enviornment, but we do see some folks ordering the hex chip variant (pretty much the same mechanism, just a different head shape for driving) when they're retrofitting older panels that already have the receiver hardware.
Anyway, the quality side of things — each batch comes with a COA showing the tensile and corrosion test results, usually better than generic hardware store stuff for this because the tolerance on the locking mechanism is tighter, and you'll notice the hook pin has a really consistent engagement depth that prevents those annoying little shifts over time.
For ordering, MOQ is usually 500 units or so for the stock sizes (10cm and 15cm being the most common), but our company can do smaller runs on teh 20cm versions (usually 2-4 weeks lead time) — just be aware the 12cm option is a bit of a specialty size so we don't always have it on the shelf, so confirm availability before placing a big order.
Packaging is straightforward cardboard cartons with internal dividers, 50 pieces per box, and each unit is individually wrapped in oil paper to prevent surface oxidation during shipping, which you get for free — no surcharge on packing matrial (check the freight quote though because that cardboard adds up dimensionally).
For the zinc alloy PXG-A, MOQ is 500 pieces. For galvanized steel, we can do 200 pieces for a first order.
Standard lead time is 15-20 working days after order confirmation. We can rush it to 10 days if needed, but that adds a small surcharge.
Yes, we offer a mill test certificate for the galvanized steel and a salt spray test report for the finish. Just request it with your PO.
It's designed for 15cm total panel thickness. If your foam core is 50mm, the panel is likely thinner, so you'd need the 10cm version instead.
Keep them in a dry, indoor area at room temperature. Stack them in their original packaging to avoid scratching the galvanized surface. Moisture can cause white rust over time.
