Aluminum Control Horn with Bearing Clevis (each) The size of the control rod that fits into the end of the clevis is 4/40 or 2.5mm. It has enough material to be drilled to fit up to a 3mm rod. The hole measures 2.05mm. The horn length is 34mm Hardware that passes thru the bearing are all 2mm
2 x 10mm screw with locking nut and a 2mm plastic bearing to stop the side of the clevis from rubbing against the side of the inside clevis
3mm x 30mm flat head screw is what secures the horn and passes thru the hard point on the control surface.