Applications:

Type "NKCFM" nuts feature a nylon cap in miniaturized clinch nut series. They are particularly suited for use in thin aluminum of soft steel sheets where conditions of the application necessitate sealing or covering of screw ends.

 

MATERIAL:

STEEL

STAINLESS STEEL, AISI 303 OR EQUIV.

CAP - BLACK NYLON

 

FINISH:

STEEL - CADMIUM PLATE

STAINLESS STEEL - UNPLATED

 

LOCKING INSERT:     

BLACK NYLON - HEAT STABILIZED. SUTIABLE FOR TEMPERATURES UP TO 350°F.

 

PERFORMANCE:

TORQUE PER PROCURMENT SPECIFICATION, SIZES 8-32 AND LARGER. SEALING ABILITY: INTERNAL AND EXTERNAL PRESSURES UP TO 80 PSI, PAST THE BOLT THREADS, PROVIDED A SUITABLE SEAL IS EFFECTED BETWEEN THE NUT BASE AND ITS MAKING SURFACE.

 

Shank Length Selection

 

NKCFM1 parts are recommended for installations involving sheet thicknesses up to approximately .050 inch. Practical flushness can be achieved in thicknesses as low as .030 inch.

 

NKCFM2 parts are recommended for use in sheet thicknesses of .050 or heavier.

 

For optimum installation it is recommended that the proper tools be used, and that the maximum tabulated clinching pressures not be exceeded. Exceeding these values can, depending upon the material into which the nut is installed, cause distortion of the work and/or the nut itself.

 

The most satisfactory installations are obtained when the nut is pressed into the work until its shoulder rests against the surface of the work. The shank should then be flared.

 

It is recommended that the acting surface of the punch face be maintained. Both the punch and the dolly should be regularly inspected and cleaned of any plating build-up in order to assure proper seating of the nut.

 

Flush mounting punches are intended for use with No. 1 shank length parts in .030 to .040 thick sheet and No. 2 shank length parts in .050 to .060 thick sheet. For sheet thicknesses .040 to .050 it is recommended that No. 1 shank length parts be used with internal flaring punches and for thicknesses greater than .060 no. 2 shank length parts be used with internal flaring punches.