Steel Thread Rolling Screw for Metal， Black Oxide Finish， Pan Head， Star Drive， #6-32 Thread Size， 3/8" Length (Pack of 100)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Thread rolling screw recommended for use in metal</li><li>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>Pan head has a flat top and short vertical sides with a rounded top edge</li><li>Star drive has a six-pointed indentation that provides a large contact area for the driver， resisting slippage better than a Phillips or slotted drive</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51zl6%2B0tDML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Q0M71X2ML.jpg" noproxy>