Blackening Flat Finish Washer and Spring Lock Washer Assortment Kit

● Product:

- M3 M4 M5 M6 M8
- Executive standard:GB93 GB98
- Material: carbon steel 45H - Main Color: black
-Surface treatment: oxidation and blackening

● Package:

- Spring lock washer:
- M3 ------------------- 50pcs
- M4-------------------- 50pcs
- M5-------------------- 50pcs
- M6-------------------- 25pcs
- M8-------------------- 25pcs
- Flat washers:
- M3 ------------------- 50pcs
- M4-------------------- 50pcs
- M5-------------------- 50pcs
- M6-------------------- 25pcs
- M8-------------------- 25pcs

● Description:

- The product adopts high quality steel, sturdy and durable.
- The surface is treated with oxidation and blackening, which is beautiful and anti-rust.
- These flat washer provides a bearing surface for fastener load distribution and resistance to abrasion.
- Widely used in power equipment, electronic machinery, mechanical equipment, household appliances etc.