20pcs Rubber End Caps Cover 18mm Vinyl Screw Thread Protector Round PVC Vacuum Caps for Screw Bolt Pipes Blue

What is this? The flexible rubber end caps are widely used for screw thread protectors bolt caps metal pipe and plastic pipe tubing end cover chair legs furniture feet fences machinery end protectors etc. Is there any advantages of the product? Soft lightweight small size durable and long service life; Rubber material good insulation; Easy to install and use. How to use it? Steps of installation: 1. Prepare rubber end covers with appropriate size; 2. Insert the end of screws bolts pipes etc. What should I notice? Please pay attention to the selection of rubber end caps with appropriate size especially the inner diameter