Solid brass screw cups for a highly professional and flush finish. Commonly used with brass countersunk screws for decorative finish or for panels where frequent removal and replacement may be required. Drill hole Ø size provided is a guide only and may vary in woods with varying hardness. We recommend cups are covered before gently tapping into place to avoid damage to both brass and timber. Solid Brass Drill hole Ø size provided is a guide only and may vary in woods with varying hardness We recommend cups are covered before gently tapping into place to avoid damage to both brass and timber" Outer Dia. mm: 12.0 To Fit Screw Dia. mm: 4.8, 5.0 To Fit Screw Gauge imp.: 10 Finish: Polished Material: Solid Brass