The return knob plunger is made of carbon steel, which has high hardness and corrosion resistance. The surface is blackened to prevent rust and is durable.A spring plunger is used for positioning and indexing. The threads are clear and thin for precise positioning and equipped with nuts, which can be fixed in various mechanical equipment.The Spring Plunger is an important part or component of the machine. Used to enhance the interlocking function of workshop machinery or adjust fitness equipment.Widely used in various engineering machinery and equipment, trucks, film and television industry equipment, workshop machine tool production equipment, and other industrial fastener automatic equipment.
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