| 摘要 |
The invention provides a plug and fastener (10, 110, 210, 310, 410, 510 , 610, 710, 810, 910, 1010, 1110) and method for sealing in an opening (20) in a workpiece (P). The plug and fastener includes a shank (12) having a threaded portion (14, 114, 214, 314, 414, 514, 614, 714, 814, 914, 1014, 1114) for engaging with an internal wall (18, 118, 218, 318, 418, 518, 618, 718, 856, 856a) of the opening and providing a first seal, and includes an unthreaded sealin g portion (16, 116, 216, 316, 416, 516, 616, 716, 816, 916, 1016, 1116) proximate the threaded portion which also enters the opening. The unthreaded sealing portion is configured to engage and provide a second seal against the intern al wall (18, 118, 218, 318, 418, 518, 618, 718, 854, 854a) of the opening.</SDO AB>
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