Seldén D-shackles in forged 316 stainless steel for dinghy rigging and deck hardware connections, available in five sizes from M4 to M8 pin diameter including a captive pin option, with specific variants referenced for BBB30 and BBB40 block attachment.
How to choose
A D-shackle has a straight gate and is the standard choice for inline rigging connections where load is predominantly axial. Choose pin diameter to match the hole size of the fitting you are connecting to. Several shackles in this collection are matched to specific Seldén blocks: the M4x8x15 mm D-shackle is specified for BBB30 and BBB40 blocks. If you are replacing a shackle on a block, check the pin diameter against the block specification before ordering.
The captive pin variant of the M5 D-shackle prevents the pin from being lost when the shackle is opened. This is useful on blocks, halyards or control lines that are opened and closed regularly during rigging and de-rigging, where a dropped pin in the water or on deck is a practical problem.
Two shackles in this collection have a larger pin than body: the M8/6 variant has an ø8 mm pin in an ø6 mm body, and the standard M5x10x20 mm captive pin has a 5 mm pin in a 10 mm wide body. Check both the pin and body dimensions against your fitting when replacing an existing shackle.
What's in this collection
The M4x8x15 mm D-shackle (307-080) is specified for BBB30 and BBB40 block connections.
The M5x10x20 mm D-shackle with captive pin (307-019) suits applications where the pin must be retained when the shackle is open.
The M5x11x19 mm D-shackle (307-081) is a standard ø5 mm pin shackle for general rigging connections.
The M6x12x22 mm D-shackle (307-086) suits connections requiring a ø6 mm pin.
The M8/6x13x21 mm D-shackle (307-097) has a ø8 mm pin in a ø6 mm body for applications where pin strength is the priority but a compact body is needed.
