Moen Home Care peened 24 concealed screw grab bar * Stainless Steel Peened Finish Concealed Screw Mounting 1 ¬ Diameter Bar * 1 ¬ * Peened grab bar rods are formed from type 304 stainless steel tubing with a satin finish * 12 -- 42 length is 20 gauge 48 length is 18 gauge * ADA ANSI ASTM CSA * Tested to 500 lbs pull