LBY 160pcs Machine Screws Assortment Kit, M4 Phillips Pan Head Bolts, 5 Sizes (with Nuts and Flat Washers), Copper (Yellow)

M4 Metric Machine Screws and Nuts and Bolts and Flat Washers Kit ● Product: - M4 - Material: copper - Main Color: yellow - Surface treatment: pickling. ● Package: - PM4×10mm--------------10pcs - PM4×20mm--------------10pcs - PM4×30mm--------------10pcs - PM4×40mm--------------10pcs - PM4×50mm--------------10pcs - Nut M4---------------------50pcs - Flat Washer M4---------60pcs ● Description: - Machine screw are made of copper, with smooth edges, products are easy to use and durable. - Screw kit Including screws, washers and nuts.Multiple sizes for easy use. - Widely used in 3D printing equipment, communication equipment, power facilities, electronic products, etc.