This Sirius High Tensile 8.8 Zinc Plated Bolt is supplied in M20 x 170mm, a very long heavy-duty fastener for deep structural connections and major industrial through-bolt applications. The M20 thread delivers substantial clamping force across the 170mm length. Manufactured from Grade 8.8 steel with a BZP finish. Features and Benefits: • Grade 8.8 high tensile steel construction • Bright zinc plated finish for corrosion resistance • Precision rolled threads for reliable fastening • Compatible with matching M20 nuts and washers Specifications: Size: M20 Length: 170mm Qty: Pack of 1 Contents: Pack of 1