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temporary joining method - Coggle Diagram
temporary joining method
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screws
Wood screws provide a neat, strong method of joining timber,
classified by their length, gauge (diameter), material and type of head
Woodscrews are available in four standard forms: 
Countersunk – are the most common; finish flush with the surface; available plated in zinc and nickel.
Round head – usually japanned steel, and used to fix metal fittings outdoors, e.g. hinges, bolts, guttering and downpipes.
Raised countersunk – usually made of chrome-plated steel or brass, and used where appearance is important.
Twinfast – have two threads, which gives them greater holding power in manmade materials such as chipboard, MDF and blockboard.
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nuts and bolts
nuts
bolts
Nuts and bolts are used to clamp two pieces of material, usually metal, together. They provide a mechanically strong method of joining materials.
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