
Screw pin or safety bolt — which to choose
The G-209 pattern is a screw pin bow (anchor) shackle — the general-purpose choice for temporary rigging.
- 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-209 is the U.S. pattern for a screw pin bow shackle, also called a screw pin anchor shackle. The body is a large O-shaped loop and the pin is a screw pin that threads into one ear of the shackle, so the shackle can be fitted and removed by hand without tools.
The larger loop is what distinguishes a bow shackle from a dee shackle: it accepts loads from several directions without developing as much side load. The trade-off is that the wider loop reduces the overall strength slightly compared with a dee shackle of the same size.
Key facts
- Bow (anchor) pattern — a large O-shaped loop.
- Screw pin, threaded into the shackle ear — no tools needed to fit or remove.
- Best suited to temporary connections, or connections that are changed often.
- Carbon steel, electro galvanized or hot-dip galvanized.
- Size and working load limit are permanently marked on the body; values on request.
How it compares
G-210 is the dee (chain) version of the same screw pin shackle — narrower, stronger in a straight in-line pull, but not tolerant of side loading. Use G-209 where sling legs meet or the load direction may change. Where the connection must not work loose, use the bolt type pattern G-2130 (bow) instead of the screw pin.
Applications
FAQ
What is the difference between G-209 and G-210?
When should I use a bolt type shackle instead?
Do you hot-dip galvanize G-209?
Related pages
These pages cover the same job from a different angle.
Talk to us about your requirements
Send us the specification, quantity and destination — we will come back with a quotation.
