At the 42.4mm European standard, a crossing rail doesn't have to break the grip: the 736-424 Flush "X" Elbow runs one 1.67" OD handrail straight through the joint unbroken, 180° end-to-end, while two perpendicular tubes meet at the crossing — a corridor or stair handrail passing a side rail without interruption. It fits 1.67" OD tubing with a .080" wall built to the DIN/EN standard, in 316 stainless, Polished or Satin, for marine-grade corrosion resistance on coastal and exposed runs. It pairs with the matching 1.67" round tubing, splices, and fittings in the same 42.4mm line.