our company can customize these European type large D shackles quite a bit—different finishes, sizes, even the pin length if you need it, and the lead time is usually about 10 to 20 days after order confirmation, though we can push it if the order's big enough.

They're made form carbon steel Q235 or 45# steel, drop forged or precision cast depending on what you're after, and the working load limit ranges from 80kg all teh way up to 8000kg for the 50mm ones—that's pretty much the heavy end of spectrum.

You'll mostly see these in lifting, marine rigging, or industrial connecting, but honestly, they're not great for anything that needs a lot of flex or shock loading—a straight U shape doesn't absorb that well.
The galvanized finish—hot dipped or electro—holds up fine in saltwater, but we usually recommend hot dipped for marine use since it's thicker, and the natural finish is just bare steel, so you'd want to clear that with the buyer.

Minimum order is 100 pieces per size, we take T/T, L/C, or Western Union, and the packging is either gunny bags or cartons on pallets—most buyers go with the palletized cartons because of that it's easier to handle for bulk orders.

ISO9001 and CE are standard, but we've also got BV and SGS certs if your client wants third-party inspection, and the HS code is 73269010—though we usually have stock on the 10mm to 20mm range, confirm lead time for anything else.
Our MOQ is 100 pieces per size, so you'd need to order at least that many for each size you want. If you're just testing, we recommend picking one common size to start with.
Delivery is 10-20 days after order confirmation, regardless of order size within reason. Larger orders might lean closer to 20 days, but we'll confirm the exact timeline when you place the order.
Yes, we include CE and ISO9001 certificates with every shipment. We can also arrange a BV or SGS inspection report at your request, but that may add a bit to the cost and lead time.
Hot dipped galvanized gives a thicker, more corrosion-resistant coating, ideal for marine or outdoor use. Electro galvanized is thinner and smoother, better for indoor or light-duty applications. Both are available, so it depends on your working environment.
Absolutely, we offer customization for branding and packaging. You can have your logo stamped on the shackle or printed on the carton, but we'll need to discuss the specifics and minimums for that. Standard packaging is gunny bag or carton with pallet.