The gold-filled finish is a treatment widely used in the USA.
It's a 14 karat gold finish applied to a brass base.
The weight of gold corresponds to 1/20 of the total weight of the product, ie approximately 50 to 100 times more than in a gold-plated product.
Gold-filled jewelery has the appearance of gold jewelery for a much lower cost.
Much more resistant than a gold-plated classic, a gold-filled product will oxidize much less quickly.

This pin has for quality its length and its fineness (it can pass in the chain with fine links):
Length: 75 mm
Thread Diameter: 0.6 mm
Diameter of the head: 1.6 mm
To help you we have a technical sheet to form a loop on a nail and quickly realize a DIY creation.

Sold per piece.