Amazon.com: US Cargo Control 1/2 Inch Galvanized Screw Pin Anchor Shackle - Each with a 2 Ton Capacity : Industrial & Scientific
US Cargo Control 5/16 Inch Stainless Steel Type 316 Screw Pin Anchor Shackle - Each with a 0.65 Ton Capacity: Collated Screws: Amazon.com: Industrial & Scientific
5 / 8 Load Rated Screw Pin Anchor Shackle
CM 3 Ton Carbon, 1/2" Shackle w/Screw Pin Anchor M650P
Blue Hawk 3/8-in Galvanized Anchor Shackle with Screw Pin in the Chain Accessories department at Lowes.com
Galvanized Steel Screw Pin Anchor Shackles | West Marine