Nut Caps, Hexagonal Screw Caps, Protective Nut Caps, Nut Caps, Nut Caps, M10 Nut Caps, M8 Caps, 40 Pieces 40 sets screw caps, M8 x 20, M10 x 20, black, the quantity is enough for your daily use for hex bolts and nuts to improve the life of nuts and bolts, easy to install and disassemble. Screw cap with high quality PE plastics, sturdy, not easy to deform. The plastic hex nut cover is corrosion resistant, does not age, prevents ultraviolet rays with good low temperature resistance, light weight, good toughness and protects nuts and bolts. Screw Caps The screw cap protects protruding hexagonal bolts and nuts from external weather conditions and thus provides significant protection against corrosion and rust. The shape of the protective caps also protects against cuts. Screw Head Covers Incredibly easy installation thanks to the hexagonal tab (press-on). Screw Protective Cap The screw cap is used in the construction industry, broadly understood, for the construction of machines and equipment, furniture, play equipment elements and other elements of garden architecture, where aesthetics and quality count.