These are essentially nuts with locks. They easily rotate during tightening and loosening for fast assembly.

Lock Nut In Arunachal Pradesh

Lock Nut Manufacturers In Papum Pare

Lock Nut Suppliers In Changlang

Lock Nut Exporters In Lohit

Arunachal Pradesh- Lock Nut.

Papum Pare , Changlang , Lohit , West Siang, Tirap , East Siang