Washers are used to distribute the load of a threaded fastener, such as a screw or nut to keep the bolt tight when a structure moves or shifts. There are many different types of washers to meet your needs. Flat, round, spring, double coil, split lock, square curved, etc. They are hot dipped and galvanized steel, made to stand through the different weather. They give greater strength and added resistance to corrosion. Double coil spring lock washers compensate for wood shrinkage to help eliminate radio interference caused by loose hardware. Single coils are made of high grade spring steel to keep a bolt nut in tension, insuring a tight assembly under all temperatures. Call Northern Power if you have any questions, we are here to help with any of your needs.
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