JINGGONG 8.8 Grade Carbon Steel Hex Socket Cap Screws

These JINGGONG 8.8 grade hex socket cap screws are made from high-strength carbon steel with a durable black oxide finish. Designed to GB70 standards, they feature a cylinder head and are ideal for various industrial and DIY fastening applications.

type: Cylindrical head bolt Surface treatment: Black Material: Carbon Steel Implementation Standards: GB70 Nominal length: nullmm Nominal diameter: nullmm Performance level: 8.8