Hexagon nut gr.5 plain fine thread

Hexagon nut gr.5 plain 1/4-28 Hexagon nut gr.5 plain 5/16-24 Hexagon nut gr.5 plain 3/8-24 Hexagon nut gr.5 plain 7/16-20 Hexagon nut gr.5 plain 1/2-20 Hexagon nut gr.5 plain 9/16-18 Hexagon nut gr.5 plain 5/8-18 Hexagon nut gr.5 plain 3/4-16 Hexagon nut gr.5 plain 7/8-14 Hexagon nut gr.5 plain 1''-14