Requires a greater amount of torque to loosen than to tighten the nut
Will span oversized or poorly aligned holes
Does not gall screw threads
0.347 in THK
Lock nut
Flange provides a more uniform bearing-stress to clamp-force ratio than other low carbon lock nuts
Hex nut with an enlarged circular base flaring out from the bottom of the nut
The bearing surface of the flange has serrations which displace material on the mating surface when the nut is wrenched into place, forming a connection to resist loosening