National Hardware 5/16-in x 5-in Zinc-plated Interior/Exterior Coarse Thread Eye Bolt in the Specialty Bolts department at

Hillman Full Thread Metric Bolt, Outdoor, Stronger Bolt, Assorted Sizes

National Hardware 3/8-in x 5-in Zinc-plated Interior/Exterior Fine Thread Eye Bolt in the Specialty Bolts department at

National Hardware 5/16-in X 5-in Zinc-plated, 47% OFF

Nuts, Bolts & Fasteners at Ace Hardware

National Hardware 5/16-in X 5-in Zinc-plated, 51% OFF

Hillman 1/2 in. X 5 in. L Hex Zinc-Plated Steel Lag Screw 25 pk - Ace Hardware

Hillman Flat Head Socket Cap Screws, Hexagon Drive, Assorted Sizes

Hard-to-Find Fastener 014973454418 Eye Bolts, 5/16-18 x 6-Inch, 10-Piece : Industrial & Scientific

National Hardware #675 - 3/8 in. x 4 in. x 5 in. Zinc-Plated U-Bolt Plate with Hex Nut N222-398 - The Home Depot