Moeller - Tank Cradle Hold Down Kit - 300110. Plastic coated straps resist corrosion, while insuring a secure installation of tank.. Kit Includes:. 8 x 22"L Tank Cradle Metal Straps. 2 x 1/4"-20 x 3" Fully Threaded Hex Head Bolt. 8 x 1/4"-20 x 1/2" Phillips Head Cap Screw. 10 x 1/4"-20 Nylock Nut. 4 x #14 x 1-1/4" Phillips Button Head Screw