Simpson Strong Tie HD3B 2-1/2" x 8-5/8" Light Duty Bolted Holdown 12-Gauge 12 Gauge Use with 5/8" Anchor and (2) 5/8" Stud Bolts 2-1/2"W x 8-5/8"H Zinc galvanized finish containing 0.90oz of zinc per square foot of surface area (total both sides)