Metric Lock Nut - M6 - Coarse - Steel Can be used as jam nuts, threaded over another nut to keep it in place Unalloyed steel may be surface treated to enhance corrosion resistance </
Metric Lock Nut - M8 - Coarse - Steel Can be used as jam nuts, threaded over another nut to keep it in place Unalloyed steel may be surface treated to enhance corrosion resistance<
5/8 inch Jam Nut - Coarse - Grade 2 Unalloyed steel may be surface treated for corrosion resistance and other properties Second nut threaded over a bolt to prevent the first from loosening