| 摘要 |
An overhead anchoring track with a C-shaped channel and a row of outwardly protruding eye sockets in the web portion of the channel shape, the eye sockets having conical portions and adjoining neck portions which engage the threaded shaft portions of countersunk head anchoring screws, the anchoring screws having their heads supported in the conical portions of the eye sockets, on the inner side of the web portion, while being axially retained either by a female thread in the neck portions or by neck portions which are radially pinched against the screw shafts. At least one additional member is threadable onto the distal extremity of each anchoring screw, for the purpose of anchoring and/or positioning the anchoring track in relation to the concrete member.
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