DROPOUT 120, MULTIPLE MAKERS - CNC machined 6061 aluminum. - Black anodized finish. - Attaches to frame with (2) M4x8 flat head screws. - Fasteners not included. ~ Note: The mounting holes on Hanger #120 are 18mm apart, center-to-center. Do not confuse this hanger with DROPOUT-138. - 1 drop out per bag.