Loctite Super Glue is a good high quality fast drying glue thanks to patent technology, and dries on clear, making it perfect for fly tying.  We love using this on our parachute posts to help make them more firm, and easier to wrap the hackle.  It is also perfect for finishing off your parachute flies without doing a whip finish to help make the fly more clean.  When added to your thread just before finishing it helps secure your knot and durability of the fly.  This is something Davie McPhail does with all his flies.  What we like about this one is it comes with a brush allocator that makes it easy to apply.