SWEBOLT & BOTNIA BOLT supply partially threaded hex bolts according to ISO 4014 and DIN 931, in property class 8.8 per ISO 898-1, with metric coarse thread (M) and hot-dip galvanized (HDG) surface. The thick zinc coating provides strong and long-lasting corrosion protection for outdoor and structural environments. Suitable for construction, industrial, and infrastructure use where durability and reliability are essential.