8.8 Grade Carbon Steel Hex Bolt with Nut & Washers (Blackened)

This high-strength 8.8 grade carbon steel hex head bolt set includes a half-thread bolt, nut, flat washer, and spring washer. Adhering to GB5782 National Standard, these fasteners feature a blackened surface treatment for enhanced durability and corrosion resistance. Ideal for heavy-duty applications requiring reliable and robust connections.

Implementation Standards: National Standard length: 0 Pitch: 2 type: Four-piece screw assembly Surface treatment: Black Performance level: 8.8