8.8 Grade Carbon Steel Hex Head Bolt Kit

This kit features an M18-2.5x60, 8.8 grade carbon steel hex head bolt with a black finish. It also includes one flat washer, one spring washer, and one nut, all conforming to the GB5783 standard for reliable fastening.

Material: Carbon Steel Performance level: 8.8 Implementation Standards: GB5783 length: 60mm Surface treatment: Black type: Four-part bolt