Best Seller | ZORO SELECT B70520.050.0400 Concrete Screw, 1/2" Dia., Hex, 4 in L, Steel Zinc Screw Anchor, Anchor Diameter 1/2 in, Overall Length 4 in, Head Type Hex, Drive Type External Hex, Material Steel, Finish Zinc Plated, Material Grade/Class Case Hardened, Compatible Material Concrete, Drill Bit Size 1/2 in, Screw Anchor Type... ... more ZORO SELECT B70520.050.0400 Concrete Screw, 1/2" Dia., Hex, 4 in L, Steel Zinc Screw Anchor, Anchor Diameter 1/2 in, Overall Length 4 in, Head Type Hex, Drive Type External Hex, Material Steel, Finish Zinc Plated, Material Grade/Class Case Hardened, Compatible Material Concrete, Drill Bit Size 1/2 in, Screw Anchor Type... | | $125.99 go to store |