Bolt Series

DIN 933 DIN931 Black Galvanized Hot-dip galvanizing Hex Bolts Grade 4.8/8.8/10.9/12.9

High-quality carbon steel hex bolts manufactured to international standards DIN 933 (full thread) and DIN 931 (half thread). Available in multiple strength grades and anti-corrosion surface treatments to suit construction, machinery, and industrial applications.

PropertySpecification

Standards：DIN 933 / DIN 931 / ISO 4014 / ISO 4017

Material：Carbon Steel (Q195, Q235, 35K, 45K, 40Cr)

Grade：4.8, 8.8, 10.9, 12.9

Size Range：M5 – M64 (Custom lengths available)

Finish：

Black Oxide, Zinc Plated (Clear/Blue/Yellow), Hot-Dip Galvanized (HDG), Geomet