170 PCS M2 M8 Copper Flat Washers,Brass Gaskets

【Material】: The copper washer is made of high-quality copper material, which has good electrical and thermal conductivity. The surface is smooth, strong and durable. 【Set】: M2 (30 pcs), M2.5 (30 pcs), M3 (30 pcs), M4 (20 pcs), M5 (20 pcs), M6 (20 pcs), M8 (20 pcs). There are totally 170 pieces. 【Features】: Copper washers are easy to install. It can be used with bolts or nuts and can reduce friction, preventing leakage or loosening. 【Uses】: It is suitable for all kinds of precision CNC lathe parts, automatic lathe parts, precision screws, micro screws, stamping parts, etc. Besides, flat copper washer is widely used in equipment manufacturing, engineering machinery, agricultural machinery, power transmission and distribution and other industrial and civil fields. 【Easy Access】: The copper washers are classified according to size and packed in transparent plastic boxes, which are easy to carry and access.