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4 way cross joint set

4 way cross joint set steel bk

In stock

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

The HJ-3 is a black metal joint set that allows you to create a four-pipe intersection or a corner. This joint set is excellent for making corner pegs at 90 degrees. It is also often used in the center of structures to create strong counterweight and in the bottom of structures to fix stem-mount casters.

To assemble an HJ-3 you need to combine two H-2 and an H-4 together with three M6-25B bolts and three M6-N nuts. This connector is a little bit trickier to assemble than the HJ-1 or HJ-2, but when fixing both H-2 parts together first, you should have an installed HJ-3 connector in no time.

Technical Information:
This joint set is designed with 14 striations for a better grip on the plastic coating of the 28 mm pipes. It also includes 3 additional pre-drilled reinforcement holes to ensure extra strength to your structure. By adding a self-drilling screw F-A85/8, you will solidify the connector joints positioned on a corner where there is a higher risk of impact.

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-3NP

Want to reuse parts of your old system?
The HJ-3 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 SellerYes
Units per boxNA
Needed parts2 (H2) + 1 (H4) + 3 (M6-25B) + 3 (M6-N)
Length inches2 9/16 in (65 mm)
Width inches1 5/16 in (33 mm)
External height inches3 1/4 in (83mm)
External width inches5 1/4 in (133mm)
External depth inches1 5/16 in (33mm)
Steel thickness inches1/8 in (2.5 mm)
Unit weight pounds0.706 lbs (0.321 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 useHigh
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 grip14 striation grip lines
Positioning guide12 positioning guide lines
Additional reinforcement hole7 reinforcement holes
1- Make sure you have the following parts:
2 H-2
1 H-4
3 M6-25B
3 M6-N
4 28mm pipes of your choice
1 Allen key or one drill equipped with an Allen Key 5mm tip
2-Take two connectors H-2 and a connector H-4 and group them around the P1 pipe. 3-Take three M6-25B bolts and three M6-N nuts and insert them into the corresponding openings. Make sure to put the bolts on the more accessible side. 4- Tighten the M6-25B bolts and nuts M6-N together a few threads beginning by the one which connects the two H-2 together."
5- Insert the P2 and P3 pipes within the HJ-2 between the first and second guides as shown in the plan .
6- Tighten completely the M6-25B bolts and M6-N nuts together until the HJ-2 is attached firmly to the four pipes . A force of 9.8 Nm is recommended for this step.