500pcs M4 4.2*7*12 4.2x7x12 4.2*7*13 4.2x7x13 ID*OD*L ABS Plastic Nylon Round Column Tube Insulation Shim Washer Standoff Spacer
Technical Details
DIY Supplies: | Electrical |
is customized: | Yes |
Model Number: | 4.2*7*12/13 |
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