Rectangular tube
with thread
Plug for rectangular tubing with M8 internal thread—for dimensions 40×20, 40×30, 50×30, and 60×40 mm. Seals the tube end with a positive fit and accommodates attachments such as balls, eyelets, or Rounds via the central thread. For wall thicknesses from 1.5 to 3.0 mm, raw/ungalvanized.