Clamping Screws

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About Screws

Clamping screws are machine elements which use screw thrust for workpiece fixing and positioning.
Point contact by the full ball securely fixes the workpiece.
They include several varieties of tip ball shape and material, which can be selected according to the application.
As well, hex socket head cap screw type clamping bolts have functions similar to clamping screws.

Hints for correctly using NBK products

Introducing usage methods for screws with ball-shaped tips for securely fixing workpieces.


Selection Conditions
  • Select Thread SizeM12
Image Clamping Screws - Full Ball Clamping Screws - Full Ball Clamping Screws - Full Ball Clamping Screws - Full Ball Clamping Screws (Fine Screw Thread) - Full Ball Clamping Screws (Fine Screw Thread) - Full Ball Clamping Screws (Fine Screw Thread) - Full Ball Clamping Screws - Full Ball Clamping Screws - Full Ball
Part Name Clamping Screws - Full Ball Clamping Screws - Full Ball Clamping Screws - Full Ball Clamping Screws - Full Ball Clamping Screws (Fine Screw Thread) - Full Ball Clamping Screws (Fine Screw Thread) - Full Ball Clamping Screws (Fine Screw Thread) - Full Ball Clamping Screws - Full Ball Clamping Screws - Full Ball
Part Number SCS-M12-16-R SCS-M12-20-R SCS-M12-30-R SCS-M12-40-R SCS-M12F-20-R SCS-M12F-30-R SCS-M12F-40-R SCSS-M12-16-R SCSS-M12-20-R
Feature Complete Ball Type Complete Ball Type Complete Ball Type Complete Ball Type Fine Pitch Screw / Complete Ball Type Fine Pitch Screw / Complete Ball Type Fine Pitch Screw / Complete Ball Type Complete Ball Type Complete Ball Type
Price 5.37 USD 4.50 USD 4.84 USD 5.03 USD 13.39 USD 14.99 USD 16.68 USD 9.83 USD 9.83 USD
Thread Part Material Steel Steel Steel Steel Steel Steel Steel Stainless Steel Stainless Steel
Thread Size M12 M12 M12 M12 M12 M12 M12 M12 M12
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
Image Clamping Screws - Full Ball Clamping Screws - Full Ball Clamping Screws - Special Material Full Ball Clamping Screws - Special Material Full Ball Clamping Screws - Special Material Full Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball
Part Name Clamping Screws - Full Ball Clamping Screws - Full Ball Clamping Screws - Special Material Full Ball Clamping Screws - Special Material Full Ball Clamping Screws - Special Material Full Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball
Part Number SCSS-M12-30-R SCSS-M12-40-R SCSS-M12-20-CE SCSS-M12-30-CE SCSS-M12-40-CE SCS-M12-16-F SCS-M12-20-F SCS-M12-30-F SCS-M12-40-F
Feature Complete Ball Type Complete Ball Type Complete Ball Type
Ceramics Ball
Complete Ball Type
Ceramics Ball
Complete Ball Type
Ceramics Ball
Flat Ball Type Flat Ball Type Flat Ball Type Flat Ball Type
Price 9.99 USD 9.99 USD 27.83 USD 28.41 USD 28.97 USD 7.41 USD 7.23 USD 7.34 USD 7.53 USD
Thread Part Material Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Steel Steel Steel Steel
Thread Size M12 M12 M12 M12 M12 M12 M12 M12 M12
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
Image Clamping Screws (Fine Screw Thread) - Flat Ball Clamping Screws (Fine Screw Thread) - Flat Ball Clamping Screws (Fine Screw Thread) - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism
Part Name Clamping Screws (Fine Screw Thread) - Flat Ball Clamping Screws (Fine Screw Thread) - Flat Ball Clamping Screws (Fine Screw Thread) - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism
Part Number SCS-M12F-20-F SCS-M12F-30-F SCS-M12F-40-F SCSS-M12-16-F SCSS-M12-20-F SCSS-M12-30-F SCSS-M12-40-F SCS-M12-16-FB SCS-M12-20-FB
Feature Fine Pitch Screw / Flat Ball Type Fine Pitch Screw / Flat Ball Type Fine Pitch Screw / Flat Ball Type Flat Ball Type Flat Ball Type Flat Ball Type Flat Ball Type Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Price 16.45 USD 17.71 USD 19.58 USD 12.70 USD 12.70 USD 12.70 USD 12.70 USD 17.69 USD 17.69 USD
Thread Part Material Steel Steel Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Steel Steel
Thread Size M12 M12 M12 M12 M12 M12 M12 M12 M12
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
Image Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism
Part Name Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Flat Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism
Part Number SCS-M12-30-FB SCS-M12-40-FB SCSS-M12-16-FB SCSS-M12-20-FB SCSS-M12-30-FB SCSS-M12-40-FB SCS-M12-16-GB SCS-M12-20-GB SCS-M12-30-GB
Feature Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Price 17.69 USD 17.69 USD 22.49 USD 22.49 USD 22.49 USD 22.49 USD 27.49 USD 27.49 USD 27.49 USD
Thread Part Material Steel Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Steel Steel Steel
Thread Size M12 M12 M12 M12 M12 M12 M12 M12 M12
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
Image Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Bolts - Full Ball Clamping Bolts - Full Ball Clamping Bolts - Full Ball Clamping Bolts - Full Ball
Part Name Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Screws - Knurled Ball - with Reversal Protection Mechanism Clamping Bolts - Full Ball Clamping Bolts - Full Ball Clamping Bolts - Full Ball Clamping Bolts - Full Ball
Part Number SCS-M12-40-GB SCSS-M12-16-GB SCSS-M12-20-GB SCSS-M12-30-GB SCSS-M12-40-GB SCB-M12-30-R SCB-M12-50-R SCB-M12-80-R SCBS-M12-30-R
Feature Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Complete Ball Type Complete Ball Type Complete Ball Type Complete Ball Type
Price 27.49 USD 31.56 USD 31.56 USD 31.56 USD 31.56 USD 5.69 USD 5.94 USD 6.56 USD 11.71 USD
Thread Part Material Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Steel Steel Steel Stainless Steel
Thread Size M12 M12 M12 M12 M12 M12 M12 M12 M12
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
Image Clamping Bolts - Full Ball Clamping Bolts - Full Ball Clamping Bolts - Ceramic Ball Clamping Bolts - Ceramic Ball Clamping Bolts - Ceramic Ball Clamping Bolts - Flat Ball Clamping Bolts - Flat Ball Clamping Bolts - Flat Ball Clamping Bolts - Flat Ball
Part Name Clamping Bolts - Full Ball Clamping Bolts - Full Ball Clamping Bolts - Ceramic Ball Clamping Bolts - Ceramic Ball Clamping Bolts - Ceramic Ball Clamping Bolts - Flat Ball Clamping Bolts - Flat Ball Clamping Bolts - Flat Ball Clamping Bolts - Flat Ball
Part Number SCBS-M12-50-R SCBS-M12-80-R SCBS-M12-30-CE SCBS-M12-50-CE SCBS-M12-80-CE SCB-M12-30-F SCB-M12-50-F SCB-M12-80-F SCBS-M12-30-F
Feature Complete Ball Type Complete Ball Type Complete Ball Type
Ceramics Ball
Complete Ball Type
Ceramics Ball
Complete Ball Type
Ceramics Ball
Flat Ball Type Flat Ball Type Flat Ball Type Flat Ball Type
Price 14.33 USD 21.11 USD 31.17 USD 33.19 USD 44.27 USD 7.70 USD 8.05 USD 8.68 USD 14.33 USD
Thread Part Material Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Steel Steel Steel Stainless Steel
Thread Size M12 M12 M12 M12 M12 M12 M12 M12 M12
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
Image Clamping Bolts - Flat Ball Clamping Bolts - Flat Ball Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism
Part Name Clamping Bolts - Flat Ball Clamping Bolts - Flat Ball Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Knurled Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism
Part Number SCBS-M12-50-F SCBS-M12-80-F SCB-M12-30-GB SCB-M12-50-GB SCB-M12-80-GB SCBS-M12-30-GB SCBS-M12-50-GB SCBS-M12-80-GB SCB-M12-30-FB
Feature Flat Ball Type Flat Ball Type Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Ratchet Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Price 16.68 USD 23.43 USD 31.35 USD 31.35 USD 31.35 USD 41.21 USD 41.21 USD 45.86 USD 19.79 USD
Thread Part Material Stainless Steel Stainless Steel Steel Steel Steel Stainless Steel Stainless Steel Stainless Steel Steel
Thread Size M12 M12 M12 M12 M12 M12 M12 M12 M12
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
Image Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism
Part Name Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism Clamping Bolts - Flat Ball - with Reversal Prevention Mechanism
Part Number SCB-M12-50-FB SCB-M12-80-FB SCBS-M12-30-FB SCBS-M12-50-FB SCBS-M12-80-FB
Feature Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Flat Ball
Limited Swivel Type
Price 19.79 USD 19.79 USD 30.14 USD 30.14 USD 32.62 USD
Thread Part Material Steel Steel Stainless Steel Stainless Steel Stainless Steel
Thread Size M12 M12 M12 M12 M12
CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications