NEWBYTEK 5/16"-18 Non-Slip Furniture Levelers, 8-Pack Leveling Feet

5/16"-18 UNC ONLY: Not compatible with M8 (IKEA) or 5/16"-24. Verify fit: Test with a 5/16"-18 hex nut, or use calipers (Rulers are inaccurate) to verify thread diameter(0.302"to 0.311") & Count 18 threads per inch. | Fully Solid Rubber Feet: Our 1" all-rubber body provides non-slip, scratch-free floor protection for chairs, light cabinets & tables. Includes rust-resistant bolts & locknuts to prevent loosening. | Custom Height Adjustment: Elevates pieces by 0.5" to 1" using the 5/16"-18 x 1.08" shank. This extra lift protects light furniture bottoms from wet mops & allows easy vacuuming underneath. | Stop Wobbles & Reduce Noise: Secure patio tables & chairs on uneven garage or outdoor concrete. The all-rubber body absorbs vibrations from speakers & light gear, preventing loud scraping. | 1" Base & Easy Install: Simply screw into existing 5/16"-18 threads. For DIY blank wood leg projects, pre-drill a 1.08" deep hole with a 7/16" bit for optimal fit in most wood types.