M3; hole diameter 3.5mm, outside diameter 9mm, height 2mm.
M4; hole diameter 4.3mm, outside diameter 11mm, height 2.5mm.
M5; hole diameter 5.3mm, outside diameter 14mm, height 3mm.
M6; hole diameter 6.4mm, outside diameter 16mm, height 3.5mm.
M8; hole diameter 8.5mm, outside diameter 22mm, height 4.5mm.
M10; hole diameter 11mm, outside diameter 28mm, height 5.5mm.
Manufactured from A2 stainless steel for corrosion resistance, the material of choice for external applications.