2 sentences

1. 这应该是最后一颗螺栓了。

   zhè yīng​gāi shì zuì​hòu yī kē luó​shuān le.

   This should be the last bolt.

   Source: OpenSubtitles

2. 这种螺栓的螺旋纹路非常深。

   zhè zhǒng luó​shuān de luó​xuán wén​lù fēi​cháng shēn.

   The threads of this bolt are very deep.

   Source: Dong Chinese Dictionary