CNF-S Clampnut

CNB.GIF

This series of CLAMP NUTS has the threads specified as FINE under the Unified system. These CLAMP NUTS better serve where a closer ratio is desired between the static strength of the shaft or spindle and the thread, where length of thread engagement is limited, where a smaller lead angle is desired, or where a thinner tubular wall for the external threaded member is desired. The external FINE threads have greater tensile stress area than comparable sizes with COARSE threads (about 10 percent stronger due to this greater cross section area). Thus FINE threads become very beneficial when resistance to stripping of threads equals or exceeds the tensile load carrying capacity of the externally threaded member. Lastly they can be more precisely adjusted because of their smaller helix angle.

This model is made of austenitic corrosion resistant steel bright finished and austenitic stainless steel socket head cap screw.

As with all precision retaining devices, care must be taken during assembly to assure premium performance. Please open and review our installation instructions for proper technique and best results.



Identification Thread
Outside Dia
(inches)
Face Dia
(inches)
Width
(inches)
Axial Load
(lbs)
Lockscrew
CAD
CNF3-32S 10-32 0.625 0.406 0.281 1200 4-40 CAD
CNF4-28S .250-28 0.625 0.406 0.281 1500 4-40 CAD
CNF5-24S .312-24 0.688 0.469 0.281 1800 4-40 CAD
CNF6-24S .375-24 0.875 0.594 0.344 2800 6-32 CAD
CNF7-20S .437-20 0.938 0.656 0.344 3100 6-32 CAD
CNF8-20S .500-20 1.125 0.781 0.437 4300 10-32 CAD
CNF10-18S .625-18 1.313 0.922 0.437 5200 10-32 CAD
CNF12-16S .750-16 1.500 1.063 0.500 7500 1/4-28 CAD
CNF14-14S .875-14 1.625 1.188 0.500 8300 1/4-28 CAD
CNF16-12S 1.000-12 1.750 1.313 0.500 9000 1/4-28 CAD
CNF16-14S 1.000-14 1.750 1.313 0.500 9200 1/4-28 CAD
CNF18-12S 1.125-12 1.875 1.438 0.500 9600 1/4-28 CAD
CNF20-12S 1.250-12 2.063 1.625 0.500 10500 1/4-28 CAD
CNF22-12S 1.375-12 2.250 1.719 0.563 12900 1/4-28 CAD
CNF24-12S 1.500-12 2.375 1.844 0.563 13500 1/4-28 CAD
CNF32-12S 2.000-12 3.000 2.469 0.625 18500 5/16-24 CAD

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