WingIt™ grab bar fastener will secure one flange of a Bobrick stainless steel grab rail, accommodating hollow wall surfaces up to 40mm thick and resisting a load up to 136 Kg. Made of corrosion resistant stainless steel, the product consists of 10–32 x 5/16'' round-head, Phillips 18/8 screws. For further details on wall suitability and tools required, please read carefully the instructions in the section below.