●Material: 304 stainless steel ●Durable and corrosion resistant. Works well in damp rooms and outdoor areas ●Size: M6, Pack of 6 ●Hex nut threaded end ensures a secure connection. Easy to use. Simply turn the hex nut clockwise or counterclockwise to unlock or lock it by hand. ●Wide application: ideal for hammock, backpack, swing, dog leash, awning and rigging.