Rivet head dating

To become a proper fastener, a rivet should be placed in hole ideally 4–6 thousandths of an inch larger in diameter.

This allows the rivet to be easily and fully inserted, then setting allows the rivet to expand, tightly filling the gap and maximizing strength.

To distinguish between the two ends of the rivet, the original head is called the factory head and the deformed end is called the shop head or buck-tail.Many sheet-metal alloys are preferably not welded as deformation and modification of material properties can occur.Rivets were also used in many tanks during World War II by a large number of countries including the M3 Lee (General Grant) manufactured in the United States.Fastenings used in traditional wooden boat building, such as copper nails and clinch bolts, work on the same principle as the rivet but were in use long before the term rivet was introduced and, where they are remembered, are usually classified among nails and bolts respectively.Go to Article This Design Squad Nation animation shows how a pop rivet clamps two pieces of material together.

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