n.翼形螺釘；拇指夾
Attach brass valve arm to plastic valve arm with thumbscrew provided. Make sure serrations mesh properly. 用所提供的翼狀螺絲將黃銅閥門臂附加到塑料閥門臂上。確保鋸齒嚙合適當。
On the back of the tailstock is a third thumbscrew that locks the tailstock in place on the dovetailed ways. 在背部的尾架是第三thumbscrew認為，鎖尾架在地方上配合的方式。
One of a series of small ridges or grooves on the surface or edge of a metal object, such as a thumbscrew, to aid in gripping. 滾花金屬物體表面或邊緣上的一系列小峰或凹槽，如指旋螺釘，使更容易握緊
There is a retractable 156mm diameter dewcap/lens shade with a thumbscrew lock that slides smoothly over the tube without scratching. 用一個平滑地翼形螺釘鎖定，絕沒有擦痕。可縮回的156毫米直徑包括遮光罩。
A small, round tool post holds a 1/4" square HSS cutting tool, which is held in place with a simple threaded thumbscrew. 一小，圓工具后持有1 / 4 “廣場高速鋼刀具，這是在地方舉行一個簡單的線程thumbscrew 。
