| 摘要 |
An apparatus comprises a fastening member, a complimentary fastening member, and a retainer member. The fastening member has a first end, a second end, a channel located at the first end, outer threads located on an outer surface of the fastening member, and inner threads located on an inner surface of the channel. The outer threads of the fastening member are closer to the first end than the second end. The complimentary fastening member has a channel and inner threads located within the channel. The inner threads of the complimentary fastening member are capable of engaging the outer threads of the fastening member. The retainer member has a threaded end. The retainer member is capable of entering the channel of the complimentary fastening member and the threaded end of the retainer member is capable of engaging the inner threads of the fastening member.
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