ᐅ Ikea Ivar shelf – older model – metal pins for shelf support

Hello,
I am looking for the article number of the old Ivar shelf AND the number of the metal pins.
Can someone help me?
Also, does anyone have experience with the non-original metal pins / metal rods that can be purchased on eBay or Amazon?

Thank you in advance for your help!

Hello, which one is THE old one?

If the pin has a diameter of 6mm (0.24 inches), then it has the spare part number 101324.

By the old model, I meant the shelves with metal strips.
So also metal pins for holding the shelves. Currently, Ikea only offers wooden pins.

Is this the item number for the metal version?

Item numbers:

101324 is a 40mm (1.6 inches) long metal pin with a diameter of 6mm (0.24 inches).

Thank you very much!