• Knobs


Captive Wing Knob

Dimension Drawing

KWBS-SCCaptive Wing Knobs寸法図

Unit : mm

Part Number D M (Coarse)
Nominal of Thread
Pitch Lm H L d1 Mass
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KWBS-21-M5-15-SC 21 M5 0.8 6 11 15 3.9 6.5 6.77 CAD Cart

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  • Captive type wing knob. Prevents fall-off and loss of the knob.
  • Foreign matter entry countermeasures in food processing machinery and so on, as well as CE marking support (⇒Use the NBK Captive Screw Series to be comply with CE ).
  • Made of stainless steel superior in corrosion resistance.
  • The shape allows easy operation and application of force.


Main Body SUSXM7 (Equivalent to SUS304)

Hints for Correctly Using NBK Products

The video is an example using KDMS-SC(KDMS-SC). You can perform the same operation using this product.

Precautions for Use

Screw hole inner diameter on the cover side shall be at least d1.
The cover thickness should be 0.8mm or above.

Mounting example

Make a screw hole in the cover, then pass the knob thread through it. Even when the screw is removed from the frame, the knob does not fall out from the cover because the knob thread catches on the screw hole of the cover.

KWBS-SCCaptive Wing Knobs

Related Services

Product List

Click here to see KWBS-SC