| 摘要 |
1505570 Fastener ERNO RAUMFAHRTTECHNIK GmbH 19 Dec 1975 [19 Dec 1974] 52141/75 Heading F2H A fastener comprises a rivetable, stamped metal base part 1 provided with holes 2, 3, 4 and grooves and an internally-threaded body part 6 having a flange 8 dimensioned to be housed in groove 5 and an annular groove 9 dimensioned to receive regions of the base part around hole 3 on compression.
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