Thread Diameter: M10(Machine screw); 10mm / 0.39"(Wood screw); Total Length: 100mm / 3.94"Wood Screw Thread Length: 60mm / 2.36"; Machine Screw Thread Length: 30mm / 1.18"Material: Carbon Steel construction with zinc plated, provides great corrosion resistance and antirust ability for long service life.Advantage: Good for wooden furniture jointing. Wood screw thread on one end and a machine screw thread on the other end.Applications: Iron furniture, outdoor furniture, household furniture, stair post, wooden guardrail, solid wood furniture, custom furniture, office furniture.