Stainless Steel adjustable handrail support in AISI grade 316 stainless. This handrail support will attach to the side of a 1.66"/42.4mm newel post or tube for lateral fastening. Made for 1.66"/42.4mm or 1.5"/38.1mm stainless handrail or 1.78" diameter wood handrail. Mounting screws not included. Recommend using 6mm pan head screw for attaching to side of stainless newel posts.