Heavy duty cross bar clamp, aluminum, for 40mm pole set
But sometimes the weight is so heavy that the standard clamp just isn't strong enough. For these cases we have introduced this new, heavy duty cross bar clamp. It connects two 40mm poles to each other in a 90° angle, and is virtually indestructible. While the clamp's body is made of aluminum, with 5mm minimum wall strength, it is clamped together by two stainless steel hex screws.
For dimensions please enlarge the drawing to the left.