These screw cover caps are designed to provide a tight seal, preventing any debris from entering threaded components. They are ideal for use in both indoor and outdoor environments, offering protection against weathering and exposure. The caps are also resistant to wear and tear, ensuring that they maintain their integrity over time. Features -Inner diameter specification: 7.0mm, 10mm, 10.5mm, 20mm, 22mm -Color:Black -Material:Rubber -Size:2.90X2.20X2.20cm/1.14X0.86X0.86in -Safe rubber: made from rubber, these screw caps are designed to resist wear, ensuring protection for screw thread -Secure seal: these screw caps provide a tight fit, preventing debris and from entering and damaging your wire ends -Easy to install: the straightforward design of these screw caps makes them easy to install, reducing the effort required for maintenance -Variety of sizes: available in different sizes, these screw caps can fit a range of thread dimensions, providing versatility for various applications -Broad applications: suitable for construction, engineering, and home improvement projects, these screw caps protect threads and enhance durability Package list: 12 x screw thread caps (Φ7.0mm) 12 x screw thread caps (Φ10mm) 8 x screw thread caps (Φ10.5mm) 8 x screw thread caps (Φ20mm) 8 x screw thread caps (Φ22mm)