Made of high-strength aeronautical aluminum. - colored anodized
60% lighter than stainless steel. TYPE: CAP NUTS FOR THREAD SIZE: M8 X 1.25 FOR SCREWS-Ø: 8.0 MM SELF-LOCKING: NO WRENCH WIDTH: 13MM Material: Aluminum SURFACE: BLUE ANODISED RESISTANCE CLASS: NO RESISTANCE CLASS SPECIALTY: CLOSED SURFACE: BLACK ANODIZED SURFACE: GOLD ANODISED SURFACE: VIOLET ANODISED SURFACE: RED ANODIZED SURFACE: ANODISED SILVER