Simple, understated design makes these solid brass knobs perfect as Shaker knobs, Hepplewhite knobs and even contemporary knobs. The½" size knob is the perfect knob for pull-out kitchen cutting boards or keyboard pullouts for desks. Please specify the fastener to be included with each knob. Machine screws come with a nut for bolting through the thickness of the wood. The wood screw is actually a double ended hanger screw that threads into the knob on one end and gives you wood screw threads on the other. The fastener supplied for either choice is for¾" thick wood. If your wood thickness differs, use the special instructions box at check out to tell us the thickness.