Amerock BP55273G10 Blackrock 1-1/2 in (38 mm) Length Satin Nickel Cabinet Knob 1-1/2 in (38 mm) Length Knob. Material : Zinc Finished in Satin Nickel Intricately crafted with precise detail for lifelong beauty and durability Includes mounting hardware: (Size(s):#8-32 x 1in Truss Head Machine Screw) Complete with Amerock Guardian Lifetime Guarantee against defect in material and workmanship