Faithful reproduction with a small 1/2" round knob, this slim design surface bolt is great for windows, cabinets and light interior doors. The bolt is a 3/8" diameter solid brass half rod 4" in length total. There are tension springs in each guide to hold the bolt in any position. The guides are made of wrought brass and measure 1 1/4" wide and 1" in length. This light duty surface bolt is available in 4 classic finishes.