Pre-Assembly Insertion Nuts for Aluminum Frames - Standard - For 8 Series (Slot Width 10mm)

Caution
Product Description
The pre-assembly insertion nut is installed from the flange of the groove before assembly. Large width causes less allowance in the groove for bolting easily.
Dimensional Drawing of Nuts
Single Nuts model | Pack Nuts Type | |
| HNTT8(equivalent to S10C) HNTTV8(anti-loosening adhesive type, equivalent to S10C) HNTTZ8(anti-loosening resin coating type, equivalent to S10C) HNTTSN8(equivalent to SUS316, sintered) HNTTSS8(equivalent to SUS303) | PACK-HNTT8(Pack of 100) PACK-HNTTV8(Pack of 100) PACK-HNTTZ8(Pack of 100) PACK-HNTTSN8(Pack of 100) PACK-HNTTSS8(Pack of 100) |
| Reference tightening torque (N・m) | ![]() | ||
| M | Equivalent to S10C/Equivalent to SUS316 (sintered)/Equivalent to SUS303 | ||
| 8 | 23.5 | ||
| Type | Type | Conductive Function | [M]Nuts Material | [S] Surface Treatment |
| ① | HNTT8 | - | Equivalent to S10C | Trivalent Chromate |
| PACK-HNTT8 | ||||
| ② | HNTTV8 | - | Anti-loosening adhesive type, equivalent to S10C | |
| PACK-HNTTV8 | ||||
| ③ | HNTTZ8 | - | Anti-loosening resin coated type, equivalent to S10C | |
| PACK-HNTTZ8 | ||||
| ④ | HNTTSN8 | ● | SUS316 equivalent (sintered) | − |
| PACK-HNTTSN8 | ||||
| ⑤ | HNTTSS8 | - | Equivalent to SUS303 | − |
| PACK-HNTTSS8 |
8 Series | 8-45 Series | |
![]() | | ![]() |
The conductive function model has protrusions on the left and right contact surfaces of the aluminum frame groove.
Specification Table of Nuts
| Nuts Model | − | M |
| HNTT8 | − | 8 |
| PACK-HNTT8 | − | 8 |
・To check the latest price, please click the "Check Price" button after confirming the model number.
| Nuts Model | M (coarse) | |||
| HNTT8(S10C equivalent) | 4 | 5 | 6 | 8 |
| HNTTV8(loosening prevention, equivalent to S10C) | 8 | |||
| HNTTZ8(loosening prevention, equivalent to S10C) | ||||
| HNTTSN8(equivalent to SUS316, sintered) | 4 | 5 | 6 | 8 |
| HNTTSS8(equivalent to SUS303) | 8 | |||
. The price list below is currentas of April 2011.
To check the latest price, please click the "Check Price" button after confirming the model number.
| Nuts Model | M (coarse) | |||
| PACK-HNTT8 | 4 | 5 | 6 | 8 |
| PACK-HNTTV8 | 8 | |||
| PACK-HNTTZ8 | 8 | |||
| PACK-HNTTSN8 | 4 | 5 | 6 | 8 |
| PACK-HNTTSS8 | 8 | |||
Specifications/Overview of Nuts
■ Nuts Anti-loosening type

- This Nuts has a loosening prevention agent applied to the inside of the tap. This reduces loosening caused by vibrations during transportation or equipment operation.
- What is a loosening prevention adhesive? It is an anaerobic adhesive encapsulated in microcapsules. It effectively prevents loosening, but please note that it requires a hardening time (72 hours at room temperature 25°C) and that it isno longer effective once loosened.
- Resin coating is a coating of resin that conforms to the shape of the screw. Although it does not have the same locking effect as adhesive types, it can be used repeatedly without requiring hardening time.
■Effects of anti-loosening agents (reference values)
| Features | Release torque after tightening (1st time) | Additional information | |||
|---|---|---|---|---|---|
| No anti-fouling agent applied | - | 5.2N・m | - | ||
| Anti-loosening adhesive type | ・Effectively prevents loosening ・However, once loosened, the effect is lost ・After tightening, the adhesive needs time to harden (approximately 72 hours at room temperature 25℃) | 7.6N・m | Test conditions: Tightened to 6.8 Nm, dried at room temperature (25°C) for 72 hours, then loosened the bolts. Measured with HNTTV5-5 | ||
| Anti-loosening resin coated type | - The anti-loosening effect can be used repeatedly (the anti-loosening effect will decrease with repeated use) - The anti-loosening effect is immediate after fastening | 6.5N・m | ・The loosening prevention effect decreases with repeated use. ・5th return torque: 6.2N・m (measured with HNTTZ5-5) | ||
[ ! ]The torque value is a reference value. The value may vary depending on the clearance between the bolt and the Nuts.
What is the conductive function?
- The conductive Nuts has a protrusion.
- When installed, the protrusions peel off the anodized coating on the aluminum frame, making it conductive.
How to Use of Nuts
This product is a pre-insertion Nuts. Please insert it into the aluminum frame before use.

Technical Information of Nuts
| Reference tightening torque (N・m) | |
|---|---|
| M | Equivalent to S10C/Equivalent to SUS316 (sintered)/Equivalent to SUS303 |
| 8 | 23.5 |
Nuts for Attaching Various Aluminum Frames and Panels/Brackets (M size - L size)
| Groove Width | Frame angle | Depth h | Compatible Nuts | Thickness b (mm) of the panel/bracket to be attached to the frame | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.8 | 1 | 1.2 | 1.5 | 2 | 3 | 4 | 4.5 | 5 | 6 | 8.2 | 9 | 10 | 12 | 14 | ||||
| 10 | 40 | 12.5 | 8-4 | M4-12 | M4-15 | M4-20 | - | M4-25 | ||||||||||
| 8-5 | M5-12 | M5-15 | M5-20 | M5-22 | M5-25 | |||||||||||||
| 8-6 | M6-12 | M6-15 | M6-20 | M6-25 | ||||||||||||||
| 8-8 | - | M8-15 | M8-20 | M8-25 | ||||||||||||||
| Groove Width | Frame angle | Depth h | Compatible Nuts | Thickness b (mm) of the panel/bracket to be attached to the frame | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.8 | 1 | 1.2 | 1.5 | 2 | 3 | 4 | 4.5 | 5 | 6 | 8.2 | 9 | 10 | 12 | 14 | ||||
| 10 | 45 | 13 | 8-4 | M4-12 | M4-15 | M4-20 | - | M4-25 | ||||||||||
| 8-5 | M5-12 | M5-15 | M5-20 | M5-22 | M5-25 | |||||||||||||
| 8-6 | M6-12 | M6-15 | M6-20 | M6-25 | ||||||||||||||
| 8-8 | - | M8-15 | M8-20 | M8-25 | ||||||||||||||
Selection Support Information of Nuts
■ Difference between first-in and last-in
・MISUMI aluminum frame Nuts are available in a variety of types, including first-in and last-in. Use them according to your needs.
First-in: Install from the groove end face before assembly. They are wide and have little play inside the groove, making bolt tightening easy.


you can remove it by hooking a hexagonal wrench into the hole in the Nuts and turning it at a right angle to the groove.
■Measures to prevent the Nuts from falling off
- If the Nuts fall off when the aluminum frame is placed vertically, it is effective to use temporary stoppers (with springs and plastic non-slip pads).
- When using a Nuts that does not have a temporary locking function, attach a pre-insertion stopper before inserting it into the groove.
Related Parts of Nuts
| Product name | Aluminum frame | bracket | Blind Joint | Frame cap | Groove cover | |
|---|---|---|---|---|---|---|
| photograph | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 8 Series | Product page | Here | Here | Here | Here | Here |
| 8-45 Series | Product page | Here | Here | Here | Here | Here |
| First-in stopper | Conductive washer |
|---|---|
![]() | ![]() |









