uxcell 4pcs HSS M3 x 0.5mm Screw Thread Straight Flutes Machine Metric Tap Product Name : Machine Tap;Flute Diameter : 3mm/ 0.12" (M3);Thread Length : 13mm/ 0.5" Pitch : 0.5mm/ 0.02";Square Head Size : 3 x 3mm/ 0.12" x 0.12" (L*W) Shank Diameter : 4mm/ 0.16";Total Length : 50mm/ 2" Color : Silver Tone, Gold Tone;Material : HSS Net Weight : 14g;Package Content : 4x Machine Tap