1.
"Bolts,screws & nuts"
"螺栓,螺丝及螺帽"
2.
double-screw bolt
螺柱，双头螺纹螺栓
3.
spiral part of a screw
（螺钉的）螺旋部分.
4.
fixed pitch propeller
定螺距螺旋桨固定螺距螺旋桨
5.
Tapping screws thread
GB/T5280-1985自攻螺钉用螺纹
6.
brass bolts and nuts with round head
黄铜圆头螺栓和螺母
7.
tap(ping) drill
螺丝孔钻，螺丝底孔钻
8.
electrically suspended gyroscope
静电陀螺仪静电陀螺仪
9.
Shaped like a top.
陀螺形的形状象陀螺的
10.
threaded type track bolt nut chuck
螺纹式轨道螺母夹头
11.
Mounting Bolts (Screws)—IAC Motor
固定螺栓（螺丝）—IAC马达。
12.
coarse threading attachment
大螺距螺纹切削装置
13.
hydrauliccontrol pitch propeller
液压操纵螺距螺旋桨
14.
controllable pitch propeller oil pump
可调螺距螺旋桨油泵
15.
hex machine screw nut
机械螺丝用六角螺帽
16.
helical gear with helix angle
带螺旋角的螺旋齿轮
17.
LDP Pump Bracket Nuts/Bolts
LDP泵支架螺帽/螺栓
18.
automotive fasteners
车辆(汽车)螺丝、螺帽