Hex chamfered single face
Hex with hole
Hex with shoulder
Hex chamfered double faces
Hex unchamfered
NF E25-405-2-2001
Hexagon thin nuts (unchamfered)
NF E25-405-2-1992
Hexagon thin nuts (unchamfered)
NF E25-405-2-2013
Hexagon thin nuts (unchamfered)