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Home/ Standards/G-2130 Bolt Type Bow Shackles

G-2130 Bolt Type Bow Shackles

G-2130 bolt type bow (anchor) shackles with nut and cotter pin, hot-dip galvanized. For permanent and vibration-prone connections. Sizes and WLL on request.

Screw pin or safety bolt — which to choose

The G-2130 pattern is a bolt type bow (anchor) shackle — bolt, nut and cotter pin, for permanent or vibration-exposed 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.

Caution — Never exceed the WLL marked on the shackle, and apply the angle factor when it is used in a multi-leg configuration.

Sources: Van Beest / Green Pin shackle catalogue (applications and range sections).

G-2130 is the U.S. pattern for a bolt type bow shackle, also called a bolt type anchor shackle. Instead of a screw pin it uses a bolt with a nut and a cotter pin, so once fitted the pin cannot rotate loose.

That makes G-2130 the right choice where a shackle stays in place for a long time, where the connection is subject to vibration or dynamic loading, or where the shackle is part of a safety-critical assembly.

Key facts

Bow (anchor) pattern — large O-shaped loop for loads from several directions.
Bolt, nut and cotter pin — the cotter pin stops the nut working loose.
Preferred for permanent, long-term and safety-critical connections.
Hot-dip galvanized for corrosion protection in exposed and marine environments.
Size and working load limit permanently marked on the body; values on request.

How it compares

G-209 is the screw pin version of the same bow pattern — quicker to fit and remove, but the pin can unscrew. Choose G-2130 when the connection must not loosen. G-2150 is the dee (chain) version of the same bolt type shackle, for a straight in-line pull.

Applications

Permanent rigging installationsVibration-prone and dynamic load connectionsOffshore and marineCranes and lifting appliancesStructural and safety-critical connections

FAQ

Why use a bolt type shackle instead of a screw pin one?

A screw pin can work loose under vibration or if the load shifts. The bolt, nut and cotter pin on a G-2130 cannot, which is why it is specified for permanent and safety-critical connections.

What is the difference between G-2130 and G-2150?

Both are bolt type shackles. G-2130 is the bow (anchor) pattern with a large loop; G-2150 is the dee (chain) pattern for a straight in-line pull.

Does the cotter pin have to be fitted?

Yes. The cotter pin is what prevents the nut from backing off. Always fit it.

These pages cover the same job from a different angle.