WHAT YOU GET:The package contains 201pcs hex lock nuts,including 7 different sizes.They can meet your needs and multiple choices,suitable for a wide of fastening,locking and repairing tasks. STURDY AND :The nylon lock nuts are made of high quality stainless steel material,sturdy,waterproof,rust-resistant and not easy to be deformed and damaged.Besides,the nylon part within the nut offers a major resistance to loosening. CONVENIENT TO CARRY AND STORE:These nylon lock nuts are organized by size in a tranparent box.With this plastic storage container,it is much handy and convenient to carry and store them. WIDE RANGE OF APPLICATION:The hex lock nuts possess the ability of anti-vibration and preventing loosening,which can be widely used in a multitude of mechanical and craftwork sectors,such as folding bed, wardrobe,sawhorse,vibrating unit, textile machine,etc. colour: silver Material: stainless steel Package Contents: 50 x M3(3mm) nut 38 x (4mm) nut 35 x M5(5mm) nut 35 x M6(6mm) nut 18 x M8(8mm) nut 15 x M10(10mm) nut 10 x M12(12mm) nut Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.