Pin style casters for tables and chairs. All of these casters have a press fit shank. This shank should be inserted into a 1/4" hole, and the knurled shank on the CA-2 and the deep wood screw style threads on the CA-4's will grip the hole as the wood expands and contracts.
CA-4 has a tapered 1" press fit pin for secure anchoring and flange has 3 screws for mounting.