Purlin anchors (PA) offer solutions for wood to concrete and concrete block connections which satisfy code requirements. The PA's dual embedment line allows installation in concrete or concrete block. PA must hook around rebar. Wood splitting may occur when anchor is nailed to wood less than 3-1/2" wide. Material: PA - 12-gauge. Finish: Galvanized. Length: 23-3/4". Fasteners: Masonry 14-16d; concrete 18-16d.