Hex socket bolt ISO 4762, steel, strength class 8.8, zinc-nickel, black (ZNBHL)

Zinc plated chrome(VI)-free black zinc-nickel plated (ZNBHL) fasteners are suitable for areas with a high corrosion risk. The coating consist of a zinc-nickel alloy layer and a sealing coat (top layer integrated with grease particles).

Corrosion-resistant:

Dimension ≥ M2 – 360h*

Dimension ≥ M4 – 480h*

Dimension ≥ M10 – 720h*

*No corrosion on non-precious metals without threaded areas when tested with salt mist according to DIN EN ISO 9227 NSS

Overview of benefits:

Corrosion-resistant up to 720 hours against non-precious metal corrosion according to DIN EN ISO 9227 NSS

Chrome(VI)-free

Regulated friction factor 0,09 μ – 0,14 μ due to integrated top layer with grease particles

Thermal capacity up to 120 °C

Uniform coating distribution

Functional and decorative