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HJ-3

4 way cross joint set

4 way cross joint set steel bk
USD$3.08

In stock

  • Compatible with 28 mm pipes
  • Assembly required

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
Needed parts2x H-2 + 1x H-4 + 3x M6-25B + 3x 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
RecyclableYes
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
ReusableYes
Reusable partsYes
Electric conductivity (ESD)No
MaterialHot rolled steel (SPHC)
Steel hardness (HRB)68-75 HRB
FinishGlossy
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. Ensure you have the following parts:
    • 2x H-2
    • 1x H-4
    • 3x M6-25B bolts
    • 3x M6-N nuts
    • 4x 28mm pipes of your choice
    • 1x T-HANDLE 5mm hex key
  2. Fix an H-2 connector in the inner corner with an H-4 and loosely tighten around the first pipe using an M6-25B bolt with an M6-N nut in the corresponding openings. Make sure to place the bolts on the most accessible side.
  3. Repeat with the remaining H-2 and fix to the connectors already in place, and loosely tighten the remaining M6-25B bolts and M6-N nuts in the corresponding openings.
  4. Insert the second, third and fourth pipe within the openings of the HJ-3, and between the first and the second positioning guidelines.
  5. Tighten the M6-25B bolts and the M6-N nuts until the HJ-3 is firmly attached to the four pipes. A force between 12-14 Nm is recommended for this step.