Product name: M4 quadrilateral nut, quadrilateral screw cap, can be more convenient to lock the screws on the items, make it safe and firm, and beautiful.
Product material: this nut is made of high quality carbon steel, high quality craftsmanship, wear-resistant and pressure-resistant, sturdy and durable, zinc-plated surface, not easy to rust, longer service life.
Features: This nut is square in design, flat without protrusion, easy to install and connect, the thread is clear and deep, not easy to slip, and the surface is smooth.
Scope of application: suitable for mechanical equipment, electronic equipment, civil furniture, electrical appliances, generally used together with screws, washers, etc., to connect and fix.