Simpson ACBH3X15.37-KT Concealed Beam Hanger Kit (2 Backplates with Screws)Model No. ACBH3X15. 37 KT Description (2) ACBH 3x15. 37 backplates with (48) SDCF22614 screws (1 connection kit) W (in.) 3 H (in.) 15 3 8 Product Includes (2) backplates and (48) SDCF22614 screws Material Aluminum The ACBH concealed beam hanger is made for the rigors of mass timber construction and is machined from aluminum for a high capacity design. With an allowable stress design load capacity of up to 20 kips, it is the strongest connector in our