MonsterBolts Fasteners Online Hardware store
This listing is for new Metric Coarse (Standard) Nylon Insert Lock Nuts in Stainless Steel. These are made from A2 (18-8) Stainless Steel with a Grade 70 rating, or commonly just called A2-70.

Available Sizes:
M2.5 / 2.5mm x 0.45, M3 / 3mm x 0.50
M4 / 4mm x 0.70, M5 / 5mm x 0.80
M6 / 6mm x 1.0, M8 / 8mm x 1.25
M10 / 10mm x 1.50, M12 / 12mm x 1.75
M14 / 14mm x 2.00, M16 / 16mm x 2.00

Specification sheet for each item below:

 MonsterBolts Online Fastener Hardware Store DIN 985 Spec Sheet