Osizhuo Carbon Steel Hex Bolt & Washer Nut Kit

This Osizhuo hex head bolt kit includes a M10*40 carbon steel bolt with an 8.8-grade performance and a black finish. Each set comes with one full-threaded hex bolt, one nut, one flat washer, and one spring washer, conforming to GB/T 5783 standard.

type: Bolt flat spring washer nut combination Material: Carbon Steel Implementation Standards: GB/T 5783 Nominal diameter: 10 Nominal length: 40 Surface treatment: Black Performance level: 8.8