Aluminum washers are versatile components used in various applications due to their lightweight, corrosion resistance, and good thermal conductivity. Material Al.
M4 copper washer typically refers to a flat washer made of copper with an inner diameter of 14 millimeters. These washers are commonly used in mechanical, plumbing, and automotive applications. The copper material is often chosen for its excellent corrosion resistance, conductivity, and malleability.