Expandable round socket from 27 to 29 mm.
This socket consists of a 10 mm diameter steel bolt, a black nylon body, a conical piece, and a washer, also made of steel.
It is mainly used on castors with an bolt hole (with a central hole) for fixing in a tube by expanding the socket. It will simplify the installation of your castors on each of your furniture.
Available in different sizes, to be chosen based on the inner diameter of your tube.
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