| 摘要 |
1319961 Stud-and-socket fasteners ITW Ltd 19 Nov 1970 [3 Dec 1969] 59096/69 Heading E2B A plastics stud fastener for engaging in a hole in a panel comprises a head 12 having a screw-driver slot 13 and one or more tangential legs 16, 18 which fold inwardly, when the stud is rotated, to allow it to pass through the hole, after which they spring out to prevent withdrawal of the stud. |
