Amazon.com: 4 PCS 34inch Shelving Connectors, Threaded Pole Connectors, Shelving Post Coupler for Extending Wire Rack Shelving, None, Compatible with 34inch Poles : Home & Kitchen
Threaded insert (self-tapping) with cutting slot - M8 - (1 piece) - made of rust-proof stainless steel A1 (VA) - NIRO - SC9058 | SC-Normteile® : Amazon.de: DIY & Tools