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Rotation prevention type that further enhances workability. One of the most standard hidden joint that can be used for various types of aluminum extrusions.
Part Number
Configured Part Number is shown.
HMJR8

| Type | Components (1 each) | |||||
| Blind Joint Parts Guide | Center Post | Set screw | ||||
| type | [M] Material | type | [M] Material | size | [M] Material | |
| H.M.J. | Standard | SUS304 | First in, standard direction | SCS13 | NO.8: M6×16 | SCM435 (surface treatment: black oxide film) |
| H.M.J.R. | First in, 90 degree inversion | |||||
| HAMJ | Post-insertion Standard direction | |||||
| HZJ | With anti-rotation function | SUS304 | First in, standard direction | SCS13 | ||
| HAZJ | Post-insertion Standard direction | |||||
| Blind Joint Parts Model |
| HMJ8 |
| Compatible frame number | [Exception] Unusable frames | |||
| 8-4040*1 | 8−4080 | 8−40120 | 8−40160*2 | *1 HFSR8-4040 with curved surface cannot be used because wrench hole cannot be machined. *2 Cannot be used in the longitudinal direction because standard hole cannot be machined. |
| Blind Joint Parts Model | accessories | ||||||
| Blind Joint Parts Type | No. | Center Post | Quantity | Joint Guide | Quantity | Set screw | Quantity |
| HMJ HZJ First-in standard direction type | 8 | First-in center post 8 | 1 | Blind Joint Parts Guide 8 | 1 | M6×16 | 1 |
| HMJR first-in, 90-degree inversion type | 8 | First-in center post 8 inversion | Blind Joint Parts Guide 8 | M6×16 | |||
| HAMJ HAZJ Post-insertion type | 8 | Rear-insertion center post 8 | Blind Joint Parts Guide 8 | M6×16 | |||
| procedure | Front View | Side View | First-in type | Post-insertion type | explanation |
| 1 | ![]() | ![]() | ![]() | ![]() | Attach the center post to frame A. (For post-insertion types , you can insert it by turning it from the top of the groove .) |
| 2 | ![]() | ![]() | ![]() | Insert the ② Blind Joint Parts guide into the frame Ⓑ with the M hole drilled . (The through hole should face up.) | |
| 3 | ![]() | ![]() | ![]() | ② While passing the center post through the Blind Joint Parts guide hole, bring frames Ⓐ and Ⓑ closer together. | |
| 4 | ![]() | ![]() | ![]() | ② Screw the set screw ③ into the tap on the side of the Blind Joint Parts guide . | |
| 5 | ![]() | ![]() | ![]() | ③ When the set screw is tightened, frames Ⓐ and Ⓑ are joined by tension. | |
| 8 Series Model Example | Frame A | Frame B | Center Joint |
|---|---|---|---|
| HFS8-4040-1000 | HFS8-4040-1000-LMH | HMJ8 |
![]() | ![]() - Method for use with frames with multiple rows of grooves on one surface: Insert joint guides from both ends of the M hole and fasten using multiple center Blind Joint Parts. - When using a frame with three rows of grooves, no hole will be drilled in the center row. (When using a frame with four rows of grooves, holes will be drilled in all grooves.) Frames with two (multiple) rows of grooves can be fastened together using two sets of center Blind Joint Parts kits. [ ! ]However, frames with three rows can only be fastened using the two rows at both ends. |
We also offer aluminum frames with the center Blind Joint Parts already installed.
No additional work is required on the mating frame.
Center Blind Joint Parts already installed in the frame
■8 Series Blind Joint Parts
| Product name | Center Blind Joint Parts | Screw Blind Joint Parts | Single Blind Joint Parts | Tapping 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 | SCS13 | Iron or SUS304 | Iron or SUS304 | SWCH-18A | Equivalent to SCS13/SUS304 | SUS316 equivalent / SUS304 | SCS13/SUS304 |
| Features | This is the most common Blind Joint Parts that can be used with a wide range of aluminium frames. | The plate allows for reliable and inexpensive connection. | 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. | Stable fastening is possible from two points. This is the strongest fastening possible with Blind Joint Parts. | This blind joint can be used for a variety of purposes, such as extending frames or attaching to plates. | The frames can be connected side-by-side. |
| Blind Joint Parts 8 Series Product Page | Viewing | Product page | Product page | Product page | Product page | Product page | Product page |
■8 series (groove width 10mm)
| Product name | Aluminum frame | Blind Joint Parts | Frame cap | Groove cover | nut |
|---|---|---|---|---|---|
| photograph | ![]() | ![]() | ![]() | ![]() | ![]() |
| Product page | Here | Here | Here | Here | Here |
CAD Data download and 3D preview are not available because the part number has not yet been determined.
| Part Number |
|---|
| HMJR8 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Type | Mount Type |
|---|---|---|---|---|---|---|---|
MYR 23.65 | 1 Piece(s) | Available | 4 Day(s) or more | - | Standard Type | Pre-Assembly Insertion 90-Degree Rotated Type |
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| Material | SUS304 | Extrusion No. | 8 | Joint Kit Type | Center Joint Kits |
|---|
Please check the type/dimensions/specifications of the part HMJR8 in the 8 Series Center Joint Kit for Aluminum Frame Blind Joints series.
| Part Number |
|---|
| HAMJ8 |
| HAZJ8 |
| HMJ8 |
| HZJ8 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Type | Mount Type |
|---|---|---|---|---|---|---|---|
MYR 35.15 | 1 Piece(s) | Available | 4 Day(s) or more | 10 | Standard Type | Post-Assembly Insertion Standard Direction Type | |
MYR 23.03 | 1 Piece(s) | Available | 4 Day(s) or more | 10 | Rotation Stopper Type | Post-Assembly Insertion Standard Direction Type | |
MYR 20.61 | 1 Piece(s) | Available | 4 Day(s) or more | - | Standard Type | Pre-Assembly Insertion Standard Direction Type | |
MYR 23.03 | 1 Piece(s) | Available | 4 Day(s) or more | - | Rotation Stopper Type | Pre-Assembly Insertion Standard Direction Type |

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Standard Price : MYR 11.00-
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Standard Price : MYR 26.96
Days to Ship : 4 Day(s) or more
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