Nut caps, hexagonal screw covers, protective nut and bolt covers, nut and bolt protection, M10 nut caps, M8 caps, 40 pieces. This set of 40 screw caps, M8 x 20 and M10 x 20, in black, is sufficient for your daily use on hexagonal bolts and nuts. They improve the lifespan of nuts and bolts and are easy to install and remove. Made of high-quality PE plastic, these screw caps are robust and resistant to deformation. The plastic hexagonal nut cap is corrosion-resistant, non-aging, and UV-resistant with good low-temperature resistance. Lightweight and durable, they protect nuts and bolts. These screw caps protect protruding hexagonal bolts and nuts from the elements, providing significant protection against corrosion and rust. The shape of the protective caps also prevents cuts. Screw head protection. Incredibly easy installation thanks to the hexagonal tab (push on). Screw protection cap. The screw protection is used in a wide range of construction industries, for the construction of machinery and equipment, furniture, playground equipment, and other garden architecture elements, where aesthetics and quality play a role.