binifiMux 340pcs Black Flat Phillips Head M4 Screws Nuts Washers Assortment Kit, M4x20mm/ 25mm/ 30mm/ 35mm/ 40mm,Carbon Steel
Brand: binifiMux
Color: Black
Package details:
20Pcs M4x20mm
20Pcs M4x25mm
20Pcs M4x30mm
20Pcs M4x35mm
20Pcs M4x40mm
80pcs M4 Spring Washer
80pcs M4 Nuts
80pcs M4 Flat Washer

About Countersunk Screws:
The countersunk screws are mostly used in places where the surface of the parts cannot be raised after installation. The parts to be fastened are thick and thin. The so-called thick, that is, the thickness of the parts to be fastened is larger than the head of the countersunk head screw. Thickness, after the screw is tightened, a part of the screw thread does not enter the threaded hole.
[♔] Name: M4 Machine Screws Nuts Washers Kit; [♔] Quantity: 340pcs;
[♔] Include size: M4x20mm/ 25mm/ 30mm/ 35mm/ 40mm;
[♔] Package: M4 Phillips Head Screws , M4 Spring Washers , M4 Flat Washers , M4 Nuts in a box;
[♔] Material: Grade 4.8 Carbon Steel; [♔] Color: Black;