| 摘要 |
A device for fastening a pair of structural pieces in face to face relationship which has a pair of conical socket members adapted to be secured to each of the pieces and opening out of respective faces thereof for rotatably accepting opposite end portions of a dowel which has a pair of diametrically opposed longitudinally extending flat portions terminating in abutement faces which are engaged by free ends of a spring leaf detent outer ends of which are secured to the socket members near the open ends thereof, the dowel having a notched central flange which can be gripped by a tool extended between the pieces for rotating the dowel so as to move the abutment faces out of and into registration with the detents.
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