M3-0.5X11 4.5 MM Hex Male-Female Standoff, Aluminum (Pack Qty 500) BC-M453011HMA

Male-female standoffs are used where a mating part contains internal threads. This M3-0.5X11, 4.5 MM hex unit is available in aluminum or stainless constructions. 6061 aluminum is favored for its balance of light weight and strength; it is non-magnetic, withstands severe temperature conditions, and offers insulating properties. Aluminum: 6061 Aluminum (Magnesium: 0.8 - 1.2%; Copper: 0.15 - 0.40%; Silicon: 0.4 - 0.8%; Iron: 0.7% maximum; Zinc: 0.25% maximum; Titanium: 0.15% maximum; Manganese: 0.15% maximum; Chromium: 0.04 - 0.35%). The stainless option is Type 303 stainless, passivated — it is conductive, non-magnetic, and delivers superior resistance to corrosion and chemical fumes, but is more expensive than the aluminum choice.