Pipe couplings RK30 black

The connector is molded in one piece in PA6 without metal reinforcement. That keeps the weight down and is plenty for shelves, racks and fittings where the joint is mainly held together by the stiffness of the tubes themselves. If you need to bolt the structure down or hang a load directly in the joint, there are sister versions with a molded in steel core and an internal thread in the same range.

Do you need the data sheet or a complete pick list for the build? Contact us.

RK30 is a three way connector for square tubes in nylon PA6. The series covers square tube 20x20 and 25x25 mm with a wall thickness of 1.5 mm, and you pick the dimension as a variant here on the product page. The connector is pressed into the tube ends and builds the structure together without welding; cut the tubes, put the connector in and tap the parts together with a rubber mallet.

With three connections the connector ties together corners where two frame tubes meet a leg, one of the most common joints in tables, racks and carts. Four such corners plus four legs make a complete frame, and the same principle scales up to larger builds.