• NS Hard Clinch Nuts

Hard Stainless (C - SP4) Unified Thread Clinch Nuts

Product Details

These extra hard stainless steel clinch nuts are made from a 400 series grade stainless and provide load-bearing UNIFIED threads in thin metal materials of up to 90HRB hardness. These clinch nuts are recommended if the parent material is stainless steel, as the nut needs to be harder than the sheet for successful installation. 400 series Martensitic stainless has a higher carbon content and also has magnetic properties.

Clinch nuts are installed into a pre-drilled or punched hole using a parallel squeezing force.


Thread SizeHole DiameterNut Body DiameterNut Body ThicknessMin. distance centre to panel edge

Dimensions in mm

Enquire Online

Thread Size
Shank Code
For Sheet Thickness
Part RefOrder CodeOrder MultipleQty
#4-4000.8-1.0C - SP4 440-0XC114400check
#4-4011.0-1.4C - SP4 440-1XC114401check
#4-4021.4+C - SP4 440-2XC114402check
#6-3200.8-1.0C - SP4 632-0XC116320check
#6-3211.0-1.4C - SP4 632-1XC116321check
#6-3211.4+C - SP4 632-2XC116322check
#8-3200.8-1.0C - SP4 832-0XC118320check
#8-3211.0-1.4C - SP4 832-1XC118321check
#8-3221.4+C - SP4 832-2XC118322check
#10-3200.8-1.0C - SP4 1032-0XC1110320check
#10-3211.0-1.4C - SP4 1032-1XC1110321check
#10-3221.4+C - SP4 1032-2XC1110322check
1/4-2011.4+C - SP4 0420-1XC1104201check

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