Class 12.9 Alloy Steel Socket Cap Screw， Black Oxide Finish， Button Head， Internal Hex Drive， Meets ISO 7380， 30mm Length， Fully Threaded， M8-1.25 Metric Coarse Threads， Imported (Pack of 100)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Class 12.9 alloy steel is often used in applications where strength is the primary consideration</li><li>Black oxide finish offers mild corrosion resistance and lubricity</li><li>Button head has a rounded， low-profile top that is suitable for light duty applications</li><li>Internal hex drive has a hexagonal slot that turns using an Allen key driver</li><li>Meets ISO 7380 specifications</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/411uaxmaP0L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31nTAxNYRLL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41Am6xBH8eL.jpg' noproxy></br>