1. [ C ] a thin pointed piece of metal with a raised edge twisting round along its length and a flat top with a cut in it, which is used to join things together, especially pieces of wood. 
* bolt /bəʊlt/ /boʊlt/ noun [ C ] SCREW = Bu lông
2. a screw-like metal object without a point which is used with a nut to fasten things together
* nut /nʌt/ noun METAL OBJECT = Đai ốc
2.    [ C ] a small piece of metal with a hole in it which a  bolt  can be screwed into 
* pliers /ˈplaɪ.əz/ /-ɚz/ plural noun = Cái kìm
a small tool with two handles for holding or pulling small things like nails, or for cutting wire 
  Pass me that  pair of  pliers, please. 
* screwdriver /ˈskruːˌdraɪ.və r / /-vɚ/ noun [ C ] = Tuốc nơ vít/ Tô vít
* wrench /ren t ʃ/ noun TOOL = Cờ lê
1.    [ C ] mainly  US      a  spanner , usually one which can be made larger or smaller for holding and turning objects of different sizes 
a metal tool with a shaped end, used to turn  nuts  and  bolts 
  an open-ended/adjustable/ring spanner 
open-ended spanner noun [ C ] UK ( US open-ended wrench ) = Cờ lê hai đầu
adjustable spanner noun [ C ] UK ( US adjustable wrench ) = Mỏ lết
ring spanner noun [ C ] UK ( US ring wrench ) = Cờ lê tròng
pipe spanner noun [ C ] UK ( US pipe wrench ) = Cờ lê mở ống
socket spanner noun [ C ] UK ( US socket wrench ) = Cờ lê ổ
Allen Key/ Hex Key noun [ C ] UK ( US ring wrench ) = Cờ lê 6 cạnh
box spanner noun [ C ] UK ( US box wrench ) = Cờ lê ống
a cylindrical tool with a six-sided end that is used for tightening and making  nuts  and  bolts  loose in places that are difficult to reach.
| Screw drive types | |
|---|---|
|  | Slot | 
|  | Phillips PH | 
|  | Pozidriv (SupaDriv) PZ | 
|  | Square | 
|  | Robertson | 
|  | Hex | 
|  | 12-point flange | 
|  | Hex socket (Allen) | 
|  | Security hex socket(pin-in-hex-socket) | 
|  | Torx T & TX | 
|  | Security Torx TR | 
|  | Tri-Wing | 
|  | Torq-set | 
|  | Spanner head (Snake-eye) TH | 
|  | Clutch A & G | 
|  | One-way | 
|  | Double-square | 
|  | Triple square XZN | 
|  | Polydrive | 
|  | Spline drive | 
|  | Double hex | 
|  | Bristol | 
|  | Pentalobe | 












 
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