Medium l-angle z-max. The ML angle combines strength and versatility through the use of Simpson Strong-Tie Strong-Drive screws (SDS). Fastener holes are staggered to minimize wood splitting and opposing hole patterns allows for back-to-back installation without fastener interference. 12-gauge ZMAX steel. 3" W1 x 3" W2 x 6" H., install with 8-SDS 1/4" x 1-1/2" screws