Chenango Supply 3/16 x 1-3/4" Hex Head Concrete Screw Anchor. 100 pieces With Drill Bit (3/16 x 1-3/4)</br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31epmePHfVL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51p12rlNRxL.jpg' noproxy></br>