SWEBOLT & BOTNIA BOLT supply steel hex bolts with flange according to DIN 6921 and EN 1665, in property classes 8.8 and 10.9. The flange under the bolt head acts as an integrated washer, distributing pressure evenly for a secure connection. Available in zinc-plated (ZN) for general corrosion protection or plain (uncoated) for dry and indoor environments. Ideal for construction, industrial, and machinery applications.