A coupling nut and its orthographic view. A coupling nut also known as extension nut is a threaded fastener for joining two male threads, most commonly a threaded rod, but also pipes.The outside of the fastener is usually a hex so a wrench can hold it.ariations include reducing coupling nuts, for joining two different size threads; sight hole coupling nuts, which have a sight hole for observing the amount of engagement; and coupling nuts with left-handed threads.
Cindy Bernard. Cindy Bernard is a Los-Angeles based artist whose artistic practice comprises photography, video, performance and activism. In 2002, Cindy Bernard founded the Society for the Activation of Social Space through Art and Sound(SASSAS), which presents site-relational experimental music.
For other people named Margaret Williams, see Margaret Williams (disambiguation) . Margaret Maggie Ann Williams (born December 25, 1954 in Kansas City, Missouri) is a partner in Griffin Williams, a management-consulting firm. She was the campaign manager for Hillary Rodham Clinton 's 2008 presidential campaign.