• "Solid Brass Handles and Knobs" for furniture kitchen drawers and doors. Artisan made in Japan • Size: Diameter 0.6 inch (16 mm), Height 0.7 inch (18 mm), Screw Hole is M4 standard, Effective Depth 0.4 inch (10 mm) • Regular screws are M4x25mm, but if you want them at the time of purchase, you can choose from M4x20mm, M4x25mm, M4x30mm, M4x35mm, M4x40mm • "Solid Brass" features a color that changes over time with an antique look. If you want to return to a clean condition afterward, polish with a commercial polish and it will glow a little and return to its original color • Brass shavings have a relatively fast color change over time. If you want to keep it as clean as possible, wipe it with a dry cloth frequently. Artisans are made without touching with bare hands and will arrive to that condition