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- MISUMI offers the HRSM/HRSU series of ball tips clamping screws.
- The main body of the clamping ball screw is made of SCM435 equivalent material in the case of HRSM, and SUS304 equivalent material in the case of HRSU.
- The ball of the clamping screw is made of SUJ2 equivalent material for HRSM, and SUS440C equivalent material for HRSU.
- The screw is available in seven sizes: M4, M5, M6, M8, M10, M12, or M16.
- The screw can be used with commercially available nuts that are equivalent to JIS6g.
- This product is designed for clamping workpieces and not for rotating the face balls. The rotation of face balls depends on the caulking condition of each face ball.
Part Number
Configured Part Number is shown.

| Type | Main Body | Ball | ||
| [ M ]Material | [ S ]Surface Treatment | [ M ]Material | [ H ]Hardness | |
| HRSM | SCM435 equivalent | Black Oxide | SUJ2 Equivalent | 62~67HRC |
| HRSU | SUS304 equivalent | - | SUS440C equivalent | 59~66HRC |
| Part Number |
| HRSM6-16 |
| Part Number | L | L1 | A | E | B | C | d1 | S | Allowable Load (kN) | ||
| Type | M | Nominal | |||||||||
| (Ball) HRSM HRSU | 4 | 10 | 10.5 | 2.1 | 7 | 4 | 3 | 2 | 2.5 | 0.8 | 1.3 |
| 12 | 12.5 | 2.1 | 7 | 4 | 3 | 2 | 2.5 | 0.8 | 1.3 | ||
| 16 | 16.5 | 2.1 | 7 | 4 | 3 | 2 | 2.5 | 0.8 | 1.3 | ||
| 20 | 20.5 | 2.1 | 7 | 4 | 3 | 2 | 2.5 | 0.8 | 1.3 | ||
| 25 | 25.5 | 2.1 | 7 | 4 | 3 | 2 | 2.5 | 0.8 | 1.3 | ||
| 5 | 12 | 12.6 | 2.4 | 8.5 | 5 | 4 | 2.5 | 3 | 1 | 1.4 | |
| 16 | 16.6 | 2.4 | 8.5 | 5 | 4 | 2.5 | 3 | 1 | 1.4 | ||
| 20 | 20.6 | 2.4 | 8.5 | 5 | 4 | 2.5 | 3 | 1 | 1.4 | ||
| 25 | 25.6 | 2.4 | 8.5 | 5 | 4 | 2.5 | 3 | 1 | 1.4 | ||
| 30 | 30.6 | 2.4 | 8.5 | 5 | 4 | 2.5 | 3 | 1 | 1.4 | ||
| 6 | 16 | 16.8 | 3 | 10 | 6 | 5 | 3 | 4 | 1.3 | 3.3 | |
| 20 | 20.8 | 3 | 10 | 6 | 5 | 3 | 4 | 1.3 | 3.3 | ||
| 25 | 25.8 | 3 | 10 | 6 | 5 | 3 | 4 | 1.3 | 3.3 | ||
| 30 | 30.8 | 3 | 10 | 6 | 5 | 3 | 4 | 1.3 | 3.3 | ||
| 40 | 40.8 | 3 | 10 | 6 | 5 | 3 | 4 | 1.3 | 3.3 | ||
| 8 | 20 | 21.2 | 3.5 | 13 | 8 | 6 | 4 | 5.5 | 1.8 | 3.9 | |
| 30 | 31.2 | 3.5 | 13 | 8 | 6 | 4 | 5.5 | 1.8 | 3.9 | ||
| 35 | 36.2 | 3.5 | 13 | 8 | 6 | 4 | 5.5 | 1.8 | 3.9 | ||
| 40 | 41.2 | 3.5 | 13 | 8 | 6 | 4 | 5.5 | 1.8 | 3.9 | ||
| 50 | 51.2 | 3.5 | 13 | 8 | 6 | 4 | 5.5 | 1.8 | 3.9 | ||
| 10 | 25 | 26.7 | 4.5 | 16 | 10 | 8 | 5 | 7 | 2.3 | 3.4 | |
| 30 | 31.7 | 4.5 | 16 | 10 | 8 | 5 | 7 | 2.3 | 3.4 | ||
| 40 | 41.7 | 4.5 | 16 | 10 | 8 | 5 | 7 | 2.3 | 3.4 | ||
| 50 | 51.7 | 4.5 | 16 | 10 | 8 | 5 | 7 | 2.3 | 3.4 | ||
| 60 | 61.7 | 4.5 | 16 | 10 | 8 | 5 | 7 | 2.3 | 3.4 | ||
| 12 | 30 | 32 | 5 | 18 | 12 | 10 | 6 | 8.5 | 2.8 | 4.8 | |
| 50 | 52 | 5 | 18 | 12 | 10 | 6 | 8.5 | 2.8 | 4.8 | ||
| 80 | 82 | 5 | 18 | 12 | 10 | 6 | 8.5 | 2.8 | 4.8 | ||
| 16 | 40 | 43.3 | 6 | 24 | 16 | 14 | 8 | 12 | 4.3 | 9.6 | |
| 60 | 63.3 | 6 | 24 | 16 | 14 | 8 | 12 | 4.3 | 9.6 | ||
| 80 | 83.3 | 6 | 24 | 16 | 14 | 8 | 12 | 4.3 | 9.6 | ||
CAD Data download and 3D preview are not available because the part number has not yet been determined.
| Part Number |
|---|
| Part Number | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Thread Dia. | Material (Tip) | Material (Thread) | Overall Length L (mm) |
|---|
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| Screw Type | Screw Type | Tip Shape | Spherical |
|---|


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