M4 Flat Head Machine Screws and Nuts Kit, 275 Pcs Black Countersunk Head Phillips Screws Bolts Hex Nuts Assortment Kit - M4 x 6mm/ 10mm/ 12mm/ 16mm/ 18mm/ 20mm industrial always remind you of the

always remind you of the working status of the machine

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100% SATISFACTION WARRANTY - Each package comes with our easy-to-follow instructions manual

M4 Flat Head Machine Screws and Nuts Kit, 275 Pcs Black Countersunk Head Phillips Screws Bolts Hex Nuts Assortment Kit - M4 x 6mm/ 10mm/ 12mm/ 16mm/ 18mm/ 20mm industrial always remind you of theM4 Flat Head Machine Screws and Nuts Kit, 275 Pcs Black Countersunk Head Phillips Screws Bolts Hex Nuts Assortment Kit M4 x 6mm 10mm 12mm 16mm 18mm 20mm What are the advantages of our phillips flat head bolt screw? ?? Machine screws and nuts are made of high quality carbon steel, anti rust, hardness, corrosion resistance, and durable. ?? The thread of the machine nuts and bolts assortment kit is clear and accurate, and it is not easy to deform, shift,