The Incoterm decides who owns the risk at each kilometre, and for locks the weight-to-value ratio makes this more consequential than it looks.
FOB
You control the forwarder and the insurance. Locks are dense and heavy; consolidating with other hardware usually beats a dedicated container for a first order.
CIF
The supplier books freight. Convenient, but the insurance cover is often minimum and the arrival charges are yours. Read the fine print on the port of discharge.
DDP
The supplier carries everything to your door. Attractive for small volumes, but certification and duty classification are now invisible to you — and that is a compliance risk if customs later asks.
What we recommend
FOB for repeat orders, CIF for the first container when you have no forwarder yet, DDP only for samples and small trial batches.
Takeaway
The cheapest quotation is often the one with the risk moved somewhere you cannot see it.