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Intersection open joint set

Inter. open joint set steel bk

In stock

  • Compatible with 28 mm pipes
  • Assembly required
  • Parts sold separately

The HJ-7A is a black metal joint set that allows you creating an intersection of two pipes, one above another. Very similar to the HJ-7, the only difference is that it is not completely closed. This connector allows the top tube to be in contact with a surface.

To assemble an HJ-7 you need to combine two H-7A together with one M6-25B bolt and one M6-N nut.

Assembly tip:
Very useful when building a tight area with the AI-CORNER and AI-CENTER accessories and you want to create a wire mesh under the surface. This connector also avoids the use of AO-SHIM. For more strengthen structures, we recommend using the HJ-7 as much as possible.

Installation Steps:
See the installation steps tab to view how to assemble this connector.

Antistatic Version (ESD):
An electric conductivity version if offered if you wish to build antistatic structures: HJ-7ANP

Want to reuse parts of your old system?
The HJ-7A Flexpipe joint set is compatible with many other pipe and connector systems. Check the technical information tab to know which systems are compatible and none-compatible with our parts.

More Information
Best SellerNo
Units per boxNA
Needed parts2x H-7A + 1x M6-25B + 1x M6-N
Length inches2 5/8 in (67 mm)
Width inches1 in (25 mm)
External height inches1 5/16 in (33mm)
External width inches2 11/16 in (68mm)
External depth inches1 5/16 in (33mm)
Steel thickness inches1/8 in (2.5 mm)
Unit weight pounds0.196 lbs (0.089 kg)
Compatible joint systemsCreform, NIS, C Tek Lean Solutions, Trilogiq (28 mm)
None compatible joint systemsFastube, Trilogiq (28.6 mm)
RoHS certificationYes
Compatible pipe systemsCreform, Fastube, Trilogiq (28 mm), NIS (28 mm), C Tek Lean Solutions (28 mm)
None compatible pipe systemsTrilogiq (28.6 mm)
Frequency of useLow
Reusable partsYes
Electric conductivity (ESD)No
MaterialHot rolled steel (SPHC)
Steel hardness (HRB)68-75 HRB
UV resistanceHigh
System operational temperature-148°F to 572°F (-100°C to 300°C)
Steel treatmentBlack cathodic electrodeposition (Ecoating)
Manufacturing techniqueStamping and deburring
Striations for gripNone
Positioning guideNone
Additional reinforcement holeNone
  1. Ensure you have the following parts:
    • 2x H-7A
    • 1x M6-25B bolt
    • 1x M6-N nut
    • 2x 28mm pipes of your choice
    • 1x T-HANDLE 5mm hex key
  2. Take the two H-7A connectors and group them around the first pipe.
  3. Fix the connectors by placing the M6-25B bolt with the M6-N nut in the corresponding openings and loosely tighten. Make sure to place the bolts on the most accessible side.
  4. Slide the second pipe into the remaining opening of the HJ-7A joint set.
  5. Position at the desired place and tighten completely until the HJ-7A is firmly attached to the two pipes. A force between 12-14 Nm is recommended for this step.