Hints for Correctly Using NBK Products
Dimension Drawing
Specs/CAD
Unit : mm
| Part Number | M (Coarse) Nominal of Thread |
Pitch | L | Lm | D1 | L1 | B | dc | D | d | t | h | Qty per Pack | Mass (g) |
CAD Download |
RFQ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SSC-M3-4-SET | M3 | 0.5 | 4 | 2 | 5.5 | 3 | 2.5 | 2.2 | 8 | 2.6 | 0.3 | 0.9 | 10 | 0.7 | CAD | RFQ |
| SSC-M3-6-SET | M3 | 0.5 | 6 | 2 | 5.5 | 3 | 2.5 | 2.2 | 8 | 2.6 | 0.3 | 0.9 | 10 | 0.8 | CAD | RFQ |
| SSC-M3-8-SET | M3 | 0.5 | 8 | 4 | 5.5 | 3 | 2.5 | 2.2 | 8 | 2.6 | 0.3 | 0.9 | 10 | 1 | CAD | RFQ |
| SSC-M3-10-SET | M3 | 0.5 | 10 | 4 | 5.5 | 3 | 2.5 | 2.2 | 8 | 2.6 | 0.3 | 0.9 | 10 | 1 | CAD | RFQ |
| SSC-M3-12-SET | M3 | 0.5 | 12 | 4 | 5.5 | 3 | 2.5 | 2.2 | 8 | 2.6 | 0.3 | 0.9 | 10 | 1 | CAD | RFQ |
| SSC-M3-16-SET | M3 | 0.5 | 16 | 4 | 5.5 | 3 | 2.5 | 2.2 | 8 | 2.6 | 0.3 | 0.9 | 10 | 1.3 | CAD | RFQ |
● When purchasing less volume than one full bag, a separate handling fee is charged. For details, see the Sold Separately Service.
Related Services
Material/Finish
| SSC-SET | ||
|---|---|---|
| Hex Socket Head Cap Captive Screw | Main Body | SUSXM7 (Equivalent to SUS304) |
| Strength Class | A2 - 70 | |
| Retaining Washer | SUS304＊1 | |
＊1： SWAS-5-SC, SWAS-6-SC, and SWAS-8-SC are SUS302.
Application
Screw fallout/loss preventionFor fixing protective covers and maintenance covers
CE Marking compatible
Redundant safety measures
Redundant fall prevention
Machine tools / Food machinery / Electrical and electronic equipment / Infrastructure facilities
Characteristics
- Set of Hex Socket Head Cap Captive Screw SSC and Retaining Washer SWAS-SC.
- Even when the screw is removed from the frame, SSC does not fall out of the cover because the washer hook catches on the screw thread. Even if SWAS-SC is damaged, the SSC thread part will catch, for double prevention of screw fall-off and loss.
- For CE Marking compatibility.⇒Use the NBK Captive Screw Series to be comply with CE
Usage Example
When a screw mounted on a cover is removed from the frame, thanks to the redundant fall protection of the captive screw and retaining washer, the screw does not fall.
Precautions for Use
- Screw hole inner diameter on the cover side shall be at least the dc dimension.
- The cover thickness should be 0.8 mm or above.
- Once SWAS-SC is mounted on a screw, it cannot be easily removed.
- To remove, either SWAS-SCor screw must be cut. Take care when mounting.
- When the screw is loosened with SWAS-SC pressed to the cover, SWAS-SC may come off.
Installation Example
① Make a screw hole in the cover, and then pass the SSC thread part through it.② Press-fit SWAS-SC into the thread part from the screw tip side. Ensure that the SWAS-SC hooks face the frame side. When mounting, use the dedicated tool SKSC (sold separately). For the frame side female thread chamfering, refer to Table 1.
Unit : mm
| Part Number | Applicable Washer | C |
|---|---|---|
| SSC-M3-SET | SWAS-3-SC | 1.5-2 |
| SSC-M4-SET | SWAS-4-SC | 1.5-2 |
| SSC-M5-SET | SWAS-5-SC | 1.5-2 |
| SSC-M6-SET | SWAS-6-SC | 1.5-2 |
| SSC-M8-SET | SWAS-8-SC | 1.5-2 |
