Hillman 240051 Carriage Bolt， 1/4 x 4-1/2-Inch， Steel， Zinc-Plated， Silver， 100-Pack</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Carriage Bolts are designed to fasten a wooden face to either wood or metal</li><li>Flat head provides a semi-flush finish to applications</li><li>The heads is designed to eliminate the need for a washer</li><li>Square underside of the head is self locking to eliminate the need for a driving tool</li><li>Zinc Finish provides a beautiful， consistent finish</li></ul></div></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/31tBzMVZ0QL.jpg' noproxy></br>