8 Adjustable 1" Stem Nylon Base Threaded Swivel Glide Levelers Color:Default Title They are bent to push

They are bent to push the top up into the rim

Fits over (snaps on) a 15/16" diameter flat metal flange or disk

Black round plastic chair tips for round tubing chair legs with a 1" outside diameter a 7/8" inside diameter

The screw size would depend on the frame hole size

8 Adjustable 1" Stem Nylon Base Threaded Swivel Glide Levelers Color:Default Title They are bent to pushAdjustable threaded stem swivel glides are the perfect solution for uneven desks. These 360 degree swivel glides come in the most common thread type 1 4 20 with a 1" inch stem length allowing you to adjust the glide to nearly any height desired. Each glide also features an all steel construction with a large 1 1 4" inch glide base to give your furniture a large stable surface to sit on.