Simpson Strong Tie CSD25300 Simpson Strong-Tie Countersunk Head Zinc Plated Split Drive Anchor 1/4-inch by 3-inch 100 per Box<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>1/4-inch by 3-inch</li><li>1/4-inch Drill Bit Diameter</li><li>Heat-Treated Carbon Steel</li><li>Zinc Plated</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31oSKls7YwL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41FT5RcfGuL.jpg" noproxy>