50pcs M2 Zinc Plated Self-Locking Nylon Insert Hex Lock Nuts

thread size 0.12 inch 0.16 inch 0.17 inch 50pcs

anti-loose hex nut female threaded inside Hex Lock Hex Lock Nuts Insert Hex Lock Nuts Thread Nylon insert Plated Self-Locking Plated Self-Locking Nylon Plated Weight Silver Hex Silver Hex head zinc plated