Key features

• •This nut and bolt assortment includes 13 sizes metric bolts, 4 sizes nuts, and 4 sizes flat washers, Multiple Sizes can Choose,all with 1:1:1 matched nuts and washersoffering a wide selection to meet various daily fastening needs(516pcs,Black)
• •Nuts and bolts assortment kit is made of high-grade carbon steel, and all parts can be rustproof, oxidation-resistant and corrosion-resistant, so as to extend the durability under various conditions. The bolt adopts cross drive pan head, with neat incision and no burr. The heat treatment process may increase the plasticity and toughness of steel and prolong the service life
• •It is easy to use the machine screw and bolt kit. Just align the screw with the hole, screw it in with a power tool or screwdriver, and then install and tighten the matching nuts and washers to complete the fastening. According to your choice, M3, M4, M5 and M6 screws are available
• •Bolt and nut kits are neatly and orderly placed in a transparent reinforced storage box, and the storage box contains partition box labels, which is convenient for safe sorting, taking, placing and carrying
• •Bolt and nut kits are widely used in DIY and professional applications, and are suitable for mechanical maintenance, automobile projects, electronics, furniture, electrical appliances, marine applications, bicycles and indoor and outdoor installation