JIS Hex, Acorn, Dome, Flanged, Lock Nuts Steel

JIS Full Hex Nuts ZnCr-3 
JIS Flanged Acorn Nut with no Serrations Trivalent White
JIS Dome Low Top Nut Chrome Plating
JIS Dome Low Top Nut Trivalent White and Black ZnCr-3
JIS Plain Fine Pitch Flange Metal Locking Nut ZnCr-3
JIS Plain Flange Metal Locking Nut ZnCr-3
JIS Plain Flanged Nuts Trivalent White
JIS Plain Flanged Nut Fine Pitch Yellow Passivate Cr-6

Type of nuts

Type 1 Also know as an Engineer nut, this nut has a flat on one side and a chamfer on the other side, this helps to stop the nut from coming loose 

Type 2 Also know a full nut this nut has a chamfer on both sides of the nut

Type 3 Also know as a half or thin nut, this nut is thinner than the the Type 2 and has a chamfer on both sides

Flanged Nut  This nut has a flange built in to eliminate the use of a washer and to help spread the load.

Flanged Lock Nuts Integrate flanged nut with a metal locking mechanism to help prevent loosening from vibration

Dome Nut Also know as Acorn or Cap nut this nut has a cap over the one end of the nut 

Dome Locking Nut Integrate flanged dome nut with a metal locking mechanism to help prevent loosening from vibration with a cap over one end of the nut

Flanged Dome Nut Also know as Acorn or Cap nut this nut has an Integrate flange and a cap over the one end of the nut 

Nyloc Nut The nut features a nylon ring at the top; as the nut is tightened, this nylon deforms and grips the bolt threads