Guwanji 8.8 Grade Carbon Steel Hex Bolt & Nut Washer Combo Set

The Guwanji GWJ-31 high-strength hex bolt set is made from durable 8.8 grade carbon steel with a blackened finish for enhanced corrosion resistance. This four-piece combination includes a hex bolt, nut, flat washer, and spring washer, providing a complete fastening solution that meets national standards. Ideal for various demanding applications requiring robust and reliable connections.

Surface treatment: Black type: Four-part bolt Performance level: 8.8 Material: Carbon Steel Implementation Standards: National Standard Pitch: 1 length: 5