Simple Joint Kit for Aluminum Frame Blind Joints

Caution
Product Description
The only additional work required to the frame is end tapping, making this a simple joint with excellent fastening workability.
Dimensional Drawing of Blind Joint Parts

| Part Name | [M] Blind Joint Parts Material | [S] Surface Treatment |
| Main unit | S45C | Trivalent Chromate |
| Dedicated bolt | SCM435 | Trivalent Chromate |
| Set screw | Black Iron Oxide Film |
Specification Table of Blind Joint Parts
| Blind Joint Parts Model |
| HUJ6 |
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| Blind Joint Parts Model | Components | ||
| Type | No. | ||
| HUJ | 6 | ①Simple Blind Joint Parts body (set screw included) | ②Special bolt |
| Simple Blind Joint Parts | Compatible frame number | |||
| HUJ6 | 6-3030 | 6−3060 | 6−3090* | 6−30120* |
| 6−5050 | ||||
| 6−6060 | ||||
| *For rectangular frames, the number of fastening points will be reduced depending on the fastening direction. (See the example of HFS6-3090 on the right.) | ||||
How to Use of Blind Joint Parts
Insert it into the groove of frame Ⓑ .
Tighten the set screw on the simple Blind Joint Parts body with a hex wrench to complete the installation.
| procedure | Side View | Floor plan | <Example for HFS6-6060> ・Four simple Blind Joint Parts are used ![]() <Example 1 for HFS6-3090> ・Three simple Blind Joint Parts are used ![]() <Example 2 for HFS6-3090> ・In this case, two simple Blind Joint Parts are used. ![]() |
| 1 | HUJ6![]() | ![]() | |
| Pass the special bolt 2 through the simple Blind Joint Parts body 1 and attach it to the tapped hole in the frame Ⓐ. | |||
| 2 | ![]() If the bolts are tightened too much, they will not fit into the grooves of frame B, so be sure to leave some play. | ![]() When the bolt is fully inserted, loosen it so that the bolt head turns half a turn, leaving some play in the X section. | |
| 3 | ![]() | ![]() | |
| 4 | ![]() | ![]() | |
■ Order example
| Frame A (tapped holes) | Frame B | Single Blind Joint Parts Kit |
|---|---|---|
| HFS6-3030-1000-LTP | HFS6-3030-1000 | HUJ6 |

Product Comparison Information of Blind Joint Parts
If using a regular bracket would cause interference with the surrounding area, we recommend a Blind Joint Parts connection. Please refer to the table below and check the detailed specifications on the product page.
| Product name | Simple Blind Joint Parts | Single Blind Joint Parts | Tapping Blind Joint Parts | Screw Blind Joint Parts | Center Blind Joint Parts | Post-insertion double Blind Joint Parts | First-in double Blind Joint Parts | Parallel Blind Joint Parts |
|---|---|---|---|---|---|---|---|---|
| Product Photos | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Installation Diagram | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Blind Joint Parts Material | S45C/SCM435 | Iron or SUS304 | SWCH-18A | Iron or SUS304 | SCS13 | Equivalent to SCS13/SUS304 | SUS316 equivalent / SUS304 | SCS13/SUS304 |
| Blind Joint Parts Features | No additional machining of wrench holes is required, and fastening can be done in one place. | Since the additional D hole does not penetrate all the way to the flat surface, this is a Blind Joint Parts with particularly excellent aesthetics. | No additional tapping holes are required. This is the most inexpensive Blind Joint Parts. | The plate allows for reliable and inexpensive connection. | This is the most common Blind Joint Parts that can be used with a wide range of aluminium frames. | Stable fastening is possible from two points. This is the strongest fastening possible with Blind Joint Parts. | This Blind Joint Parts can be used for a variety of purposes, such as extending frames or attaching to plates. | The frames can be connected side-by-side. |
| 6 Series Product Page | Viewing | Product page | Product page | Product page | Product page | Product page | Product page | Product page |
6 Series Aluminum Frame Related Parts of Blind Joint Parts
■6 Series (groove width 8mm)
| Product name | Aluminum frame | Blind Joint Parts | nut | Frame cap | Groove cover |
|---|---|---|---|---|---|
| photograph | ![]() | ![]() | ![]() | ![]() | ![]() |
| Product page | Here | Here | Here | Here | Here |
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