Normas ISO

Prevailing torque type all-metal hexagon nuts, style 2 -- Property class 9

Prevailing torque type all-metal hexagon regular nuts -- Property classes 5, 8 and 10

Prevailing torque type all-metal hexagon high nuts -- Property classes 5, 8, 10 and 12

Prevailing torque type hexagon nuts (with non-metallic insert), style 2 -- Property classes 9 and 12

Prevailing torque type hexagon regular nuts (with non-metallic insert) -- Property classes 5, 8 and 10

ISO 9167-1:1992/Amd 1:2013