Quoted from ForceFlow:transportation issues, damage in transit, being lost in transit, falling off a forklift/dock/truck, being stored outside in poor weather, unhappy/nitpicky buyers. There's a lot that can happen.
This is why you see some sellers say, " Buyer is responsible for shipping. I will work with your shipper."
When the buyer calls the shipper and makes the arrangements, then if things go wrong during shipping it is all on the buyer.
The seller still has to deal with the money part and take that risk, but when the buyer's shippers make the pickup and load the truck, the seller is done.
Did a fork lift stab the pin? It is the buyer's problem do deal with shipping.
Did the pin fall off of the loading dock and get crushed? It is the buyer who has to waste his time on the phone in an effort to get things fixed.
EDIT: Something similar is called FOB. Free on Board
https://www.investopedia.com/terms/f/fob.asp
What Is Free On Board—FOB?
Free on board is a trade term that indicates whether the seller or the buyer is liable for goods that are damaged or destroyed during shipping. "FOB shipping point" or "FOB origin" means the buyer is at risk once the seller ships the goods. "FOB destination" means the seller retains the risk of loss until the goods reach the buyer.