Screw pin or safety bolt — which to choose
The G-2150 pattern is a bolt type dee (chain) shackle — for in-line, single-leg loading where the connection must stay locked.
- Screw pin shackles are used mainly for non-permanent applications — they are quick to fit and remove.
- Safety bolt shackles (bolt, nut and cotter pin) are used for long-term or permanent applications, or wherever the load may slide on the pin and cause it to rotate.
- Dee (chain) shackles are mainly used on one-leg systems, while bow (anchor) shackles are mainly used on multi-leg systems.
Sources: Van Beest / Green Pin shackle catalogue (applications and range sections).
G-2150 is the U.S. pattern for a bolt type dee shackle, also called a bolt type chain shackle. The body is narrow, shaped like a link of chain, and the pin is a bolt with a nut and cotter pin.
A dee shackle is at its strongest in a straight in-line pull. Side or racking loads can twist or bend the body, so the load should always bear through the pin and in the plane of the body.
Key facts
- Dee (chain) pattern — narrow body shaped like a link of chain.
- Bolt, nut and cotter pin — will not work loose under vibration.
- Strongest in a straight in-line pull; avoid side loading.
- Hot-dip galvanized for exposed and marine environments.
- Size and working load limit permanently marked on the body; values on request.
How it compares
G-210 is the screw pin version of the same dee pattern — faster to fit, but the pin can unscrew. G-2130 is the bow version of the same bolt type shackle, with a larger loop that accepts loads from several directions. Choose a dee (G-2150) for a straight pull, a bow (G-2130) where sling legs meet.
Applications
FAQ
Can a dee shackle take side loading?
What is the difference between G-2150 and G-210?
Do you supply G-2150 hot-dip galvanized?
Related pages
These pages cover the same job from a different angle.
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