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Mechanical Fastener Challenges
Mechanical fasteners have been used in trailer fabrication for decades, but they do come at a cost. Workers use power tools to drill holes and to apply rivets and screws. The tools are loud, they create water penetration routes through the panels and framing members, and drill bits need to be replaced. The real problem comes during trailer use. Routine use results in road vibrations that cause drilled holes to elongate, which makes the fasteners rattle, and also creates a perfect path for water ingress. As the trailer heats up and cools down, the cycling can create a quilted type appearance in the side panels as it heats up and cools down due to point stress created at the fastener head.