Materials:
Steel

Coverage:
Coated steel: galvanized steel.

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М513.6-14.27.7-8.48.56.0-6.313.0-13.59.370.7-1.69.5×9.511×11×4.5
M613.6-14.27.7-8.48.56.0-6.313.0-13.59.370.7-1.69.5×9.511×11×4.5
M613.6-14.27.7-8.49.56.0-6.313.0-13.59.371.7-2.79.5×9.511×11×4.5
M817.5-18.49.9-10.710.57.4-7.716.4-16.911.510.61.0-1.712.5×12.514×14×5.5
M1017.5-18.49.9-10.710.57.4-7.716.4-16.911.510.61.0-1.712.5×12.514×14×5.5

Square body nuts (cleats) for thin sheets, thread sizes from M5 to M10. The body nut is installed in a square hole of the appropriate size in the sheet metal.

Marking

d – nominal thread diameter of the square nut
a – outer dimension by spring feet
b – size between the spring feet
c – height of the spring foot
d1 – dimension from the end of the nut to the sheet material
e – width of the nut cover
f – width of the spring foot
g – size
k – sheet thickness
l – the size of the hole in the sheet
m – nut size