M12 HARDENED FLAT WASHER ZINC DIN6916 no Lugs GTHM012//B
M16 HARDENED FLAT WASHER ZINC DIN6916 no Lugs GTHM0160PLAIN/B
M20 HARDENED FLAT WASHER ZINC DIN6916 no Lugs GTHM020NP//B
M30 HARDENED FLAT WASHER ZINC DIN6916 no Lugs GTHM030//B
from Kerridge Commercial Systems Ltd