M2.5-0.45X8 4.5 MM Hex Male-Female Standoff Aluminum (Pack Qty 500) BC-M452508HMA

Male-female standoffs are used to fasten assemblies when one component contains an internal thread, providing precise spacing and secure connection between parts. Two material options are commonly offered: Aluminum: Preferred for its balance of low weight and strength. It is non-magnetic, tolerates extreme temperatures well, and has insulating characteristics. Material specification: 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%). Stainless: Offered as Type 303 stainless, passivated. This option is conductive, non-magnetic, and delivers superior resistance to corrosion and chemical fumes, but it is more costly than the aluminum version.