If you don't have a screw - or you just dropped the dang small thingy into the drink - you can improvise the same effect with the bent tip of a needle or safety pin from your sewing kit or the de-barbed hook of a smaller hook or the sharpened end of a paper-clip or some snare wire or large amounts of thin cordage or small zip-ties - or for a short period of time - duct-tape or adhesive tape from your FAK.. My PSK / FAK / EDC would supply all of those options. <img src="images/graemlins/wink.gif" alt="" />