Jingzhouyuan 8.8 Grade Black Hex Bolt, Nut, and Washer Combo Set

This Jingzhouyuan 8.8 grade combo set includes a high-strength black hex bolt, a matching nut, a flat washer, and a spring washer. Designed for robust fastening applications, this four-piece set provides secure and reliable connections. The blackened finish offers enhanced corrosion resistance.