This set includes 16 steel screws, 16 insert nuts, and 8 locknuts (optional) for secure installation. ✅【5/16-18 UNC Thread Furniture Levelers】❗❗❗Ensure furniture compatibility by measuring for the right leveling feet size in imperial units. Furniture Glide Leveling Screws Adjustable Furniture Feet, 12Pcs 5/16"-18 UNC Thread - Furniture Rubber Leveling Feet For Wobbly Tables No more folded cardboard under table leg just to have a peaceful sit. Furniture Adjustable Leveling Feet at Ea Sparks blog For non-threaded legs, simply pre-drill a hole for a tight, secure leveler fit. Follow manufacturer's instructions for proper installation and use. ✅【Packing List】Stabilize wobbly tables and chairs with our 8-piece set of levelers, featuring a 0., 4” adjustment range. For 5/16-18 threaded legs, easily adjust by screwing in the leveler. Safety Warning Warning: Do not use on slippery surfaces. Leveling Feet 6pcs M8 Thread Swivel Adjustable Furniture Leg Levelers Appliance Sliders Product description Adjustable Furniture Feet Levelers These adjustable furniture feet help save your furniture! Snapklik.co : Stainless Steel Patio Furniture Leveling Feet 1/4-20... For others, drill and use the insert nut for a secure fit.