This national standard specifies the style and size, technical condition and tagging of the high strength large hexagon nuts whose screw dimension is M12~M30.
This national standard is applicable to the contact sets of friction-type high strength bolt hexagon nut and plain washer for steel structures which mating used with GB/T 1228-2006 High Strength Bolts with Large Hexagon Head for Steel Structures.
This national standard specifies the style and size, technical condition and tagging of the high strength large hexagon nuts whose screw dimension is M12~M30.
This national standard is applicable to the contact sets of friction-type high strength bolt hexagon nut and plain washer for steel structures which mating used with GB/T 1228-2006 High Strength Bolts with Large Hexagon Head for Steel Structures.