These 1-1/8-in MIN size III series circular connectors have been redesigned to deliver better connectivity and stability in harsh factory environments. The coupling nut has been enlarged to make the installation process easier by giving a wider knurl area for better gripping and to provide a more stable connection. The coupling nut material has changed from anodized aluminum to nickel-plated brass. The brass coupling nuts are corrosion-, salt- and weld slag-resistant and are more durable to withstand harsh conditions. Because of brass's high melting point (1,600 to 1,700 °F), the coupling nut is more resistant to high temperatures, making them more resistant against warping and deforming.
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