Qijun M8x40 Hex Socket Cap Screw

High-strength Qijun M8x40 Hex Socket Cap Screw, made from SCM439 alloy steel with a 12.9 performance grade. Features a durable ball head design and a black zinc-nickel alloy surface treatment, ensuring CU4 performance. Ideal for demanding applications requiring hot-dip galvanized material.

type: Ball-end type Surface treatment: Zinc-nickel alloy black Performance level: CU4-level Material: Hot dip galvanizing Implementation Standards: 1 Nominal length: 1mm Nominal diameter: 1mm