DIMENSIONS AND COLOR: M10 nut and bolt covers, wrench size 17 mm. Color: Anthracite RAL 7016, quantity per pack: 50 pcs. MATERIAL AND QUALITY: All our hole plugs are made of high-quality polyethylene PE, a durable and resistant material against deformation, UV rays, and various weather conditions. PERFECT DESIGN: The nut caps have been designed with the greatest attention to detail, with a thick core and a unique design with a click tab to permanently cover the hexagonal nut. It forms a harmonious whole and thus gives an aesthetic appearance to the final product. SAFETY: The nut and bolt covers protect protruding screws and hexagonal nuts from weather conditions and largely protect against corrosion and rust. The hexagonal shape also protects against damage. INSTALLATION AND USE: Extremely easy assembly thanks to the hexagonal tab (click-on). Nut caps are used in the general construction sector, for the construction of machines and equipment, furniture, playground equipment, and other parts of garden architecture, where aesthetics and quality count. Nut caps are designed to protect the metal holes of nuts from damage. They protect the connection between the screw and the nut. Screw covers are designed for various applications.