DROPOUT 284, SPECIALIZED - Specialized. - CNC machined 6061 aluminum. - Black anodized finish. - Attaches to frame with (1) M5x10 Socket Head Screw. - Fastener not Included. - Same as Specialized Part # S152600003 and S182600001. ~ Note: This hanger is not the same as our DROPOUT-301, which replaces Specialized Part #S152600003 (Amazinger 2.0). - 1 drop out per bag.