Zinc Alloy, surface brass plated, long time for used. Table Pin FMHXG 12 Sets Gold Metal Table Pins Dowels, Table Bolt Sleeve... DescriptionDowel pin are solid metal cylindrical fasteners that are used in a wide range of applications. 15PCS Brass Table Leaf Dowel Pins with Sockets Zinc Alloy Table Bolt Sleeve Connectors Alignment Pins for Extension Tables Cabinet Hardware Gold Table Alignment Pins Connector 20 Sets Table Bolt Sleeve Connectors Durable Table Dowel Pin Alignment Pin Zinc Alloy Dowel Sets Professional and practical design with beautiful appearance, easy to carry and use. Free delivery and returns on all eligible orders. Shop VILLCASE 20pcs Table Bolt Sleeve Connectors Table Leaf Dowel Pins Sets with Sockets Table Alignment Pins Adopts precision production to enhance the stable characteristics and high reliability. Also known as parallel pin, dowel pin are used to retain parts in a fixed position, maintain alignment between different parts, or to join different components together.