●This product is ordered by the lot. Purchase unit: 50 pieces; Easy to work just by pushing a pin; No wood screws or plugs are required, and can be removed without any rust; Mounting distribution boards, saddle bands, lighting fixtures, attaching shakles, signs, etc.; Outer diameter: 0.2 inches (5 mm); Length: 1.4 inches (35 mm); Maximum mounting thickness: 0.6 inches (15 mm); Perforation depth: 1.4 inches (35 mm); Bottom hole diameter: 0 inches (5 mm); Tensile load (5 mm). 2.1 Head Shape: Saras; Boxed; Body: Nylon; Screws: Stainless steel