Madrid square core drill spigot with dress ring Stainless steel 2205 is a superior duplex stainless steel. It features elevated levels of chemical components enabling superior strength and corrosion/pitting resistance. SS2205 is commonly used in harsh marine environments. Square shape with minimal visible fixings Modern 45mm front profile Available in white, polish, satin and black finish For 12mm glass Raised dress ring not available in Matt White – flat dress ring only M10 bolt at bottom enables; up to 60mm of vertical height adjustment, a contact point for earthing requirements if required, extra anchoring in footings. Recessed friction plate for neat finish & ease of installation Tapered packer included (1mm to 1.5mm) to enable tilt adjustment of glass. NOTE: All stainless steel products require ongoing cleaning maintenance. To assist with product upkeep, it is recommended to use a proven stainless steel protective coating treatment, particularly where a SATIN finish is selected. EnduroShield Stainless Steel Protective Coating aids in the minimisation of ‘tea stain’ issues occurring on the stainless steel surface. See EnduroShield products:  ENDURO-SSRES and ENDURO-SSC-60 on this website ** Satin finish railing is recommended for indoor installations only. For external railing, consider high polish finish to minimise tea stain possibility.