McArdent supplies a complete range of hex bolts, structural bolts, carriage bolts and screws to DIN (metric) and SAE/ASTM (imperial) standards — covering the full range of structural and mechanical fastening requirements across construction, manufacturing, mining and industrial maintenance.Our metric range covers DIN 933 (full thread) and DIN 931 (partial thread) hex bolts in property classes 4.6, 8.8 and 10.9. Our imperial range covers SAE J429 Grade 2, 5 and 8 hex cap screws, ASTM A325 and A490 structural bolts and heavy hex configurations — available in zinc plated, hot dip galvanised and plain finishes.Metric Bolt StandardsDIN 931 — Hex bolt, partial thread, M6–M100DIN 933 — Hex bolt, full thread, M6–M100DIN 603 — Carriage bolt (mushroom head), M6–M20DIN 580 — Eye boltImperial Bolt StandardsSAE J429 Gr.2/5/8 — Hex cap screws, 1/4″ to 1-1/2″ASTM A325 / A490 — High-strength structural bolts, 1/2″ to 1-1/2″ASTM A307 — Low carbon steel boltsCustom lengths, grades, finishes, materials and project quantity supply available. Contact the McArdent team for complete bolt and screw supply packages for any project specification.