Shackles: 1.Size: 3/16" to 4" 2.Forged, quenched and tempered with alloy pin 3.Max proof load is 2.2 times working load limit Introduction:We have produced the U.S anchor shackle for more than 10 years, and exported to Asia, Mid-East, Europe and so on. We can manufacture all kinds of shackles, such as G-209, S-209, G-213, S-213, G-210, S-210, G-215, S-215, G-2130, S-2130, G-2150, S-2150 etc, and ...