M20 Stud Connectors (DIN 6334) - Steel Zinc Plated Stud Connectors, also known as Coupling Nuts, are used to join or space two lengths of threaded bar together. Stud Connectors are available in either a Round or Hexagonal shape. These Stud Connectors are made from Bright Zinc Plated Steel which provides a level of corrosion and oxidation resistance as well as a bright finish. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M20 Stud Connectors (DIN 6334) - Steel Gr.6 Zinc Plated