National Hardware 6" x 5" Black Heavy Duty T-Plate is designed to provide strong support for joining a cross beam with a support beam by attaching it to the side. For enhanced durability and superior strength, it is to use plates on both sides of the joint secured with through bolts. This T-plate features a black powdercoat finish that improved resistance to weather, making it suitable for outdoor use. It is compatible with 3/8 inch bolts and 16d nails, allowing you to reinforce a variety of joints, seams, and cracks effectively. Model Number: N266-471