Powers Fastening Innovations 6320SD 5/8-Inch Smart Diand Carbon Steel Drop In Anchor， 25 Per Box<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>All-steel， machine bolt anchor</li><li>Can be used in solid concrete， hard stone and solid block</li><li>Powers Fastening Innovations</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31kGJsdrkiL.jpg" noproxy>