Fastener head and complementary driver

摘要: A fastening system comprising a driver tool bit and complementary fastener head is provided. The coupling between the driving end of occurs via at least one protruding ledge located on end, cavity in shaped sized to receive upon rotation vertical Y axis (e.g. lengthwise or along longitudinal axis) inserted end. More particularly, incorporates an overhang which configured mate with bit, resulting enhanced connection during insertion removal from work piece, without requiring application pressure directed towards piece.