These furniture glides have a stainless steel 1/4-20 thread and a threaded shaft that is 5/8" long. The diameter of the nylon base is 1".
These patio furniture levelers are made with stainless steel and come with a non skid black nylon base. They will prevent scratching your surface as well as keeping your patio furniture legs from becoming damaged.
If you are unsure of your size we recommend taking one of your current glides to the hardware store and screwing on a 1/4-20 nut to make sure this is the size you need.
This glide is used mostly for American made furniture and will not work on imported furniture from big box stores.
We also have slightly larger 5/16-18 Adjustable Screw In Feet size.
For imported furniture replacement feet take a look at our 8mm x 1.25 Screw In Leveling Feet