Old Meuchi compatible weight bolt, 1 piece Screw pitch: 5/8-18 Length: Approximately 5/8 inch Weight: Approximately 15g *The size differs from the weight bolts currently sold for Meuchi. Image 2: The screw pitch is the same as the Meuchi joint. Image 3: This is the genuine weight bolt for the Meuchi 97 that I own. It is compatible with this type. *This is not the product being sold.