280 pieces 7 sizes lock washers, steel lock washers, quick release lock washers M3 M4 M5 M6 M8 M10 M12, black Ymyny

General description These 280 pieces of lock washers come in 7 different sizes, made from durable 65 manganese steel and finished in black. They are designed for quick release applications, ensuring a secure fit for various projects. Technical specifications Material: 65 manganese steel Quantity: 280 pieces Sizes: M3*9mm, M4*12mm, M5*12mm, M6*14mm, M8*18mm, M10*20mm, M12*25mm Plastic box dimensions: 17.8*10.5*2.3cm Usage These lock washers are ideal for use in various mechanical and construction applications, providing a reliable locking mechanism to prevent loosening due to vibration.