Name the Device, Usually Threaded, That Displaces the Material Around

question 2

Short Answer

Name the device, usually threaded, that displaces the material around a mounting hole when pressed into a properly sized drilled or punched hole. This pressing or squeezing process causes the displaced sheet material to cold flow into a specially designed annular recess in the shank or pilot of the fastener. A serrated clinching ring, knurl, ribs, or hex head prevents the fastener from rotating in the metal when tightening torque is applied to the mating screw or nut.

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Definitions:

NAAQS

The National Ambient Air Quality Standards, which are the limits set by the United States Environmental Protection Agency for pollutants considered harmful to public health and the environment.

Council on Environmental Quality

A division of the Executive Office of the President that advises the U.S. president on environmental policies and initiatives.

Environmental Issues

Problems related to the natural environment due to human activities, including pollution, climate change, and biodiversity loss, requiring sustainable solutions.

EPA

Stands for the Environmental Protection Agency, which is a U.S. federal agency tasked with protecting human health and the environment through regulations and enforcement.