- Made of high quality carbon steel, hard and strong, anti-rust and anti-corrosion, durable and long service life. 2. These small size slotted nuts are easy to use and convenient for you, they are used with connection bolts, these nuts can be used to assemble furniture in the form of beds, cribs and kits, also suitable for wood, to boards, kitchen counters, etc. Delivery quantity: 40 pieces, good enough for use Size: M6 * 10 outer diameter * 13 mm height Colour: Galvanized