Yellow Passivated Concrete Anchor Bolts M8 M10 M12. A secure fixing point is essential when installing plant, machinery and other items that require support. At SecureFix Direct, we supply a wide range of Ground Anchor Bolts to suit your requirements. The Expansion Anchor Eye Bolts are available with 8MM, 10MM and 12MM threads and will therefore suit a wide range of applications. The Threaded Anchor Bolts slot into a pre-drilled hole in the concrete or cement. By then screwing the Anchor Shield Bolt into the slot, the bottom of the Anchor Bolt will begin to expand, securely fixing the Wedge Anchor Eye Bolt in place. The Ground Anchor Eyebolts are manufactured with an eye to allow for a range of items to be connected to this eye, such as hooks or shackles. The Anchor Bolts are finished in a Yellow Passivated Zinc coating, allowing for a corrosion-resistant, durable and long-lasting fixing point. M8 Dimensions: Overall Length: 93MM, Width: 13.5MM, Thread Length: 60MM, Eye Length: 33MM, Eye Diameter: 25MM, Internal Eye Diameter: 13MM.