Product Contents: Marvel Board Anchor Value AP-412; Product Specifications: Type: Screws; Body Total Length: Diameter/Neck Length: 1.4/0.4/0.4 inches (35/6.8/10 mm); Screw Head Shape: Pan Head + -/4.0 mm; Applicable Plate Thickness: 0.4 - 0.5 inches (9 mm); Quantity: 300