M4 - Spring Washer Rectangular Section Type B DIN 127 - A4 Stainless Steel - Pack of 250

These rectangular section M4 spring washers are manufactured from high quality A4 stainless steel and feature a stainless steel finish. Type B Spring washers are specifically engineered for applications where there is a need to prevent loosening fasteners due to vibration or torque. Their helical shape allows them to exert a continuous force between the fastener's head and the substrate, maintaining tension and improving the reliability of the joint. These washers are ideal for use with metric threaded fasteners in a wide range of applications, from heavy-duty industrial settings to everyday DIY tasks. They conform to the DIN 127 European Standard specification.