Types of Rivets

Rivets are used to join together two or more sheets of metal permanently. In sheet metal work riveting is done where: brazing is not suitable, the structure changes owing to welding heat, the distortion due to welding cannot be easily removed etc.

Specification of rivets

Rivets are specified by their length, material, size and shape of head.

Rivet Materials

Rivets are made of ductile materials like low carbon sheet (mild steel), brass, copper, yellow brass, aluminium are their alloys.
The length of the rivets ā€˜Lā€ is indicated by the shank length.

Rivets are cylindrical rods having heads of various shapes.They are used for assembling the parts of a work-piece together.

Parts of Rivet

Shape of Rivet head

The shape of the rivet head is to be selected according to the intended use of the work-piece to be riveted.

Diameter of Rivet Head

The diameter is to be selected depending on the required strength.

Length of Rivet Head

Length is to be selected depending upon the thickness of the components to be riveted.

Types of Rivets and Use

  1. Snap Head Rivet
  2. Pan Head Rivet
  3. Conical Head Rivet
  4. Countersunk Head Rivet
  5. Bifurcated Rivet

1. Snap Head Rivet

Snap Head Rivet is the most commonly used form, and it gives a very strong joint.

Snap Head Rivets
Snap Head Rivets

2. Pan Head Rivet

Pan Head Rivet is used in heavy structural work where the strength of rivet
is very important.

Pan Head Rivets
Pan Head Rivets

3. Conical Head Rivet

It is generally used in light assembly where riveting is done by hand hammering.

Conical Head Rivet
Conical Head Rivet

4. Countersunk Head Rivet

It is used where projection of the rivet head is to be avoided.

Countershank Head Rivets
Countershank Head Rivets

5. Bifurcated rivet

The shape of the head is shown in the figure and the bifurcated portion is used for fastening light parts- tin plates, leather, plastics, etc.

Bifurcated Head Rivet
Bifurcated Head Rivet
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