Quadcopter M3x15mm Female/Male Thread Hex Aluminum Pillar Column 10pcs Country of Manufacture: CHINA; Material: Aluminum; Net Weight: 11g Package Content: 10 x Hex Aluminum Column; Main Color: Black Total Length: 21mm/ 0.8"; Pillar Shaft Dia: 4.8mm/ 0.19" Hex Size: 6mm/ 0.24"; Thread: M3 Female to M3 Male Length(Not Include Male Thread Tip): 15mm/ 0.6"; Male Thread Tip Length: 6mm/ 0.24"