Assortment kit of M6 hex head screws and barrel nuts. Made of good quality carbon steel, hard and durable. Includes 5 sizes of screws M6 x 40, M6 x 50, M6 x 60, M6 x 70, M6 x 80, with a total of 50 screws and 50 barrel nuts M6 x 12 in a transparent box. Ideal for assembling beds, cribs and flat pack furniture, as well as for office appliances, communication equipment, ship assembly and other machinery industries. Please check the size carefully before purchasing. Thank you for your support.