• Hard Clinch Nuts

Hard Stainless (C - SP4) Clinch Nuts

Product Details

These extra hard stainless steel clinch nuts are made from a 400 series grade stainless and provide load-bearing METRIC 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

Thread Size
Shank Code
For Sheet Thickness
Part RefOrder CodeOrder MultipleQty
M211.0-1.4C - SP4 M2-1XC1121100
M2.500.8-1.0C - SP4 M2.5-0XC11250100
M2.511.0-1.4C - SP4 M2.5-1XC11251100
M2.521.4+C - SP4 M2.5-2XC11252100
M300.8-1.0C - SP4 M3-0XC1130100
M311.0-1.4C - SP4 M3-1XC1131100
M321.4+C - SP4 M3-2XC1132100
M400.8-1.0C - SP4 M4-0XC1140100
M411.0-1.4C - SP4 M4-1XC1141100
M421.4+C - SP4 M4-2XC1142100
M500.8-1.0C - SP4 M5-0XC1150100
M511.0-1.4C - SP4 M5-1XC1151100
M521.4+C - SP4 M5-2XC1152100
M601.2-1.4C - SP4 M6-0XC1160100
M611.4-2.3C - SP4 M6-1XC1161100
M622.3+C - SP4 M6-2XC1162100
M811.4-2.3C - SP4 M8-1XC1181100
M822.3+C - SP4 M8-2XC1182100

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