Universal 2000kg Pressed Steel 50mm Coupling and Adaptor Kit for 30, 40, 45 &50mm Round Tube Drawbars. 2 x M12 bolts (min 10.9). Application up to 2000kg. Universal replacement over-run coupling head kit, for models including: Knott K20A / K20B (575002), ALBE EM150A / EM150B, AL-KO AK160A / AK160B. Heavy duty pressed steel construction, zinc plated finish. Mounting holes in the side and top surfaces. Supplied with 35/40/45mm drawbar adaptors, 2 x M12 x 80mm mounting bolts, lock nuts and washers. R55 approved (D18.5, S100). Supplied without lock.