JW Winco Glass Filled Nylon Plastic Eight Lobed Hand Knob with Tapped Through Insert， Partially Threaded Through Hole， M6 x 1.0 Thread Size x 11mm Thread Depth， 25mm Head Diameter (Pack of 1)<img src="http://ecx.images-amazon.com/images/I/31WiKl7bRmL.jpg" noproxy>