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semi-permanent joining methods - Coggle Diagram
semi-permanent joining methods
Nuts and bolts
Nuts and bolts are used to clamp two pieces of material, usually metal, together. They provide a mechanically strong method of joining materials.
washers
used to spread the load and protect the surface when the nut is tightened/
Spring or lock washers are used to help prevent nuts loosened by vibration
knock down fittings
used in the assembly of flatyy pack furniture
connecter take it apart without the need to remove everything
woodscrews
neat, strong method of joining timber, and they can be removed easily
classified by the length, width, material and type of head
Always screw through the thin piece
and into the thick piece.
Drill a pilot hole slightly smaller than the core in the thick piece. Use a bradawl in softwood and a drill in hardwoof to make the pilot hole
Drill a clearance hole in the thin piece, slightly larger than the shank of the screws
Countrersink the clearance hole
brass screws shear off: to acoivd this insert a steel screw first, then replace it with a brass one
Hinges
hinges are movable joints that pivot
