Hex chamfered single face
Hex with hole
Hex with shoulder
Hex chamfered double faces
Hex unchamfered
GOST R52645-2006
Single chamfered hexagon nuts for high-strength structural boltinig with large width across flats—Property classes 8 and 10
GOST 32484.3-2014
High-strength structural bolting assemblies for preloading-system HR-Hex nut-washer faced
GOST 32484.3-2014
High-strength structural bolting assemblies for preloading-system HR-Hex nut
GOST 32484.4-2014
High-strength structural bolting assemblies for preloading-system HV-hex nut