Designed for industrial and home applications. All eye bolts have standard machine screw threads. Zinc. 1 per box. No. N347-666: Material: Steel, Finish: Zinc-Plated, Thread Diameter: 5/8", Length: 6", Thread Size: 5/8-11, Thread Length: 3.25", Inside Eye Diameter: 1.25" nominal, Hex Nut Included: Yes, Pkg Qty: 1, Package Type: Box No. N347-674: Material: Steel, Finish: Zinc-Plated, Thread Diameter: 5/8", Length: 8", Thread Size: 5/8-11, Thread Length: 3.75", Inside Eye Diameter: 1.25" nominal, Hex Nut Included: Yes, Pkg Qty: 1, Package Type: Box No. N347-682: Material: Steel, Finish: Zinc-Plated, Thread Diameter: 5/8", Length: 10", Thread Size: 5/8-11, Thread Length: 3.75", Inside Eye Diameter: 1.25" nominal, Hex Nut Included: Yes, Pkg Qty: 1, Package Type: Box No. N347-690: Material: Steel, Finish: Zinc-Plated, Thread Diameter: 5/8", Length: 12", Thread Size: 5/8-11, Thread Length: 3.75", Inside Eye Diameter: 1.25" nominal, Hex Nut Included: Yes, Pkg Qty: 1, Package Type: Box No. N347-708: Material: Steel, Finish: Zinc-Plated, Thread Diameter: 5/8", Length: 14", Thread Size: 5/8-11, Thread Length: 3.75", Inside Eye Diameter: 1.25" nominal, Hex Nut Included: Yes, Pkg Qty: 1, Package Type: Box