uxcell M3 x 20mm Female Threaded Brass Hex Standoff Pillar Spacer Nut 25pcs Thread Size: M3; Product Name: Hex Standoff Spacer Material: Brass; Weight: 53g Package Content: 25 x Hex Standoff Spacer; Main Color: Brass Tone Hex Size: 5mm/ 0.2" Total Length: 20mm/ 0.8"