<table border="1" cellspacing="0" cellpadding="8"><tbody><tr><td>measurement system</td><td>Inch, Metric, Impérial</td><td>material</td><td>Copper</td></tr><tr><td>Grade</td><td>Class 4.8 & 6.8</td><td>Thread Type</td><td>Standard Thread</td></tr><tr><td>head style</td><td>Pan, Round, Truss</td><td>finish</td><td>Plain, Silver Plated, Natural</td></tr><tr><td>Coating</td><td>Natural</td></tr></tbody></table>