metal Frame Anchor 1.Material: carbon steel, 2.Finsh: zinc plated 3.Diameter: 7mm and 10mm 4. ... Lenght:52-112mm metal Frame Anchor1.Material: carbon steel, 2.finsh: zinc plated3.Diameter: 7mm and 10mm4.Lenght:52 ... , brick, hollow blocks and cheeker brick. Yellow Zinc plated passivated steel screw with special pozi