●This product is ordered by the lot. Purchase Unit: 50 pcs. Easy to operate just by pushing the pin to ensure complete installation; Just look at the pin and you can see the complete hitting performance; For architecture, electricity, hygiene, heating and cooling work, signs, chair mounting, machine installation, etc.; Screw Nom: M10; Total Length: 3.9 inches (100 mm); Thread Length: 1.5 mm Tensile Maximum Load (30.0.0.0.0 mm) Embedded Depth: 40 Tightening Torque: 1.8 ft (45 Nm) Mounting Thickness: 1.8 in (45 mm) Total Length x Screw Length x Maximum Usable Thickness: 3.9 x 1.8 in (100 x 30 x 45 mm) Embedded Depth: 1.6 in (40 mm) Steel Surface Treatment: Trivalent chromate finish