Nill Post System Anchors Post System/ Glass Railing Anchor - Stainless Nill Flange (NB1D) Patented Product Features: ➡Stainless steel construction ➡ 1/4” Thick - Multiple thicknesses available ➡6 Counter-sink holes to receive flat head lag or sheet metal screws ➡ 3/4”-10 Waterproof threaded port standard for all your mounting needs ➡1-1/4” X 1 1/4” Thick post ➡Beveled edges to ensure a smooth & seamless membrane transition ➡Various sizes available to suit your needs ➡Compatible with most popular roofing systems ➡PATENT NO. 10,501,939