Uxcell a15060200ux0459 M3 20+6mm Male Female Thread Nylon Hex Standoff Spacer Pillar (Pack of 50) Product Name : Hex Standoff Spacer; Thread Diameter (A) : (M3) 3mm Male to Female Male Thread Length(B) : 6mm/ 0.24"; HexagonPillar Length(L) : 20mm/ 0.8" Hex Side Width(C) : 5.5mm/ 0.2"; Total Length : 26mm/ 1"