TIMco 20270CSG Resin Stud HDG M20 x 270mm Box of 4 Anchor Studs. TIMco Chemical Anchor Studs feature an external hex drive and chisel point for secure fixing with chemical resins. The studs are designed to prevent rod turning when tightening and include an embedment depth mark. Manufactured from grade 5.8 carbon steel with a Hot Dipped Galvanised finish and a Hex Full nut type and Form AD washer type. Specifications: Thread Diameter: M20, Length: 260mm, Drill Hole Diameter: 24.0mm, Fixture Hole Diameter: 24.0mm, Hole Depth: 170mm, Max Fixture Thickness: 55mm. Please note: Due to geographical locations, delivery to Highlands is not possible.