Simpson Strong Tie C410RN1 Smooth Shank Hand Drive Roof Nail 4d 1-1/2-Inch by 0.134 with 7/16-Inch Head Diameter， Copper</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Approximately 123 nails per pound</li><li>Large， flat head provides extra bearing surface to firmly secure roofing material</li><li>Smooth Head</li><li>Smooth Shank for easier penetration</li><li>Diamond point for easier driving</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/31Iedv6npoL.jpg' noproxy></br>