Quantity: 890Pcs. Cup head screw Thread size: M3 M4 M5 M6. Hex nut size: M3 M4 M5 M6. Washers Size: M3 M4 M5 M6. Hexagonal wrench size: M3 M4 M5 M6. You can use hex socket head cap screws bolts nuts and washers kit for a more precise installation.
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