The RBC roof boundary clip is designed to aid installation and transfer shear loads between the roof diaphragm and wall. The locator tabs make proper location of the clip easy. The RBC can be used on wood or masonry walls and will handle roof pitches from 0/12 to 12/12. RBC 4-1/2 in. x 5-3/4 in. Galvanized Roof Boundary Clip (Pack of 100).