This part ships direct from manufacturer
Generac Nut Flange m6-1.0 Nylok Part# 0D3700
( Commonly used with Screw Part# 0J3331 and Mount foot Part# 0J2045 )
( Commonly used with Chemical Tank Part# 0K0257 and Screw Part# 0J5086 )
( Commonly used with Chemical Tank Part# 0K4076B and Tank cap 0K4078A )