Hex Nut Stress Relieving Washer

This is a very simple but useful stress spreading washer designed for M3 Nuts and Bolts. The printed washer spreads the stress from the nut and machine screw, reducing the tendency to crack acrylic and other brittle plastics. It also reduce the tendency of the hardware to dig in and crush wood panel. Also the plastic improves the friction of the nut to hold it still while tightening the machine screw.