When sizing a Masonry Anchors it is most important to know the depth of the material that you are fixing. Zinc yellow passivated for corrosion resistance Eg: Size M610: The 'M6' is the thread size of the bolt. M10 x 15 Projecting Shield Anchor Zinc Plated CR3 Masonmate - Harclo B2B Anchor Bolts ZYP | Concrete & Masonry | Self Tapping Projection bolts offer easier fixture removal or repositioning due to the bolt remaining in the shield. APPLICATION: Ideal for securing reinforcement wall plates, lighting supports, guy ropes and bracketry. It provides a coating that is aesthetically pleasing, and which offers excellent resistance They have a tough and reliable construction to cover most heavy-duty fixing applications. The '10' denotes the maximum thickness of material it will fix. Heavy-duty anchor bolt fixing. • Finish: Zinc Yellow Passivated. • Tough and reliable construction. • Four way expansion shield offering strong and secure... The Zinc Yellow Passivation process of electroplating is similar to the ‘Galvanised’ and ‘Zinc Plated’ processes but with the addition of a yellow dye. Projecting Anchor Bolts Masonry Anchor Bolt Projecting ZYP M6 X 60mm Bag 10 – Invicta Tools Masonry Anchor Bolt Projecting Zyp M10 X 70mm Bag 5 X 8