Check the listing for details. 50Pcs 4x18mm Hanger Bolts Double Ended Self-Tapping Thread Dowel Screws. Condition: New. Listed at 12.61 USD. Description:1. Material: The hanger bolt is made of carbon steel, with a electroplating finish, providing great corrosion resistance and antirust ability for long service life.2. Advantage: This dowel screws both ends are self-tapping threads, typically used for joining two pieces of wood, to provide a solid connection. Please pay attention to the size when purchasing, it is recommended to drill small holes before screwing in the wood.3. Applications: Double-end self-tapping screw is suitable for outdoor furniture, household furniture, stair post, wooden guardrail, solid wood furniture, custom furniture, office furniture, etc.Specification:Product Name: Hanger BoltMaterial: Carbon SteelFinish: ElectroplatingPerformance Level: 4.8Total Length: 40mm / 1.57"Single Side Thread Size: 4 x 18mm / 0.16" x 0.