Specifications:
Material: Aluminum/Nylon
Surface Treatment: Anodize
Size:  M2/M3/M4/M5

Package Included:
10 x Nylon Insert Self-Lock Nuts
or
20 x Nylon Insert Self-Lock Nuts
or
30 x Nylon Insert Self-Lock Nuts
or
50 x Nylon Insert Self-Lock Nuts

High Quality:
Made of high quality Aluminum/Nylon, these lock nuts are sturdy and , making it last longer than other nuts on the market today

Great To Keep Around:
Hex nuts are great to have around for use in wood and wet environments, greatly reduce loosening under vibrations.

Different Choice For You:
Different size and color of lock nuts you can choose from us that can meet you various need, get these you can use them for many projects.

Wide Applications:
Widely used for plumbing on thread pipe and hose, they are great replacement nuts for your old or broken ones.

Notice:
1.Please allow 0-1 inch error due to that they are manual measurement.  Thanks for your understanding.
2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.