10Sets Screw Bolts with Wing Nut Zinc Plated Carbon Steel Mounting Hardware Fitting Fastenings:1/4"-20 Hand Tighten Wing Nuts,1/4"-20x1" Phillips Head Screw Bolt with Washers

Package includes: 10 x Phillips Head Screw Bolts + 10 x Hand Tighten Wing Nuts + 10 x Washers. | Made of high-quality galvanized carbon steel, environmental protection, high hardness, no deformation, rustproof, corrosion resistance, suitable for indoor, outdoor or humid environment, long service life. | Fine workmanship, smooth surface without burr, complete and deep thread, uniform force, not easy to slip, solid and durable. | Butterfly nut is specially designed for tightening operation with bare hands instead of using a screwdriver and butterfly head, thus increasing the transverse support surface and making the hand torsion more effective. | It is mainly used in household and office equipment, communication equipment, automobile industry, ship assembly and other machinery industry which need frequent disassembly and maintenance.