DIN 931 specifies hexagon head bolts with a partially threaded shank — the plain shank section gives better shear resistance and bearing fit than a fully threaded bolt in structural and machinery connections.
- Steel Grades
- 4.6, 4.8, 5.6, 8.8, 10.9
- Finish
- Plain, Zinc Plated, Hot Dip Galvanized (HDG), Black Oxide
