A D-shackle is a metal fitting composed of a U-shaped piece closed by a pin, often threaded. It is used to fasten or join rigging or other on-board elements subject to significant loads.
These fittings are used for temporary or movable fastenings. They are found primarily aboard sailboats, but can also be of use on powerboats, for example to connect an anchor to its chain.
Unlike bow and twist models, D-shackles are U-shaped. This restricts the freedom of movement of the connected elements. When forged, both shackle and pin have round cross-sections, making them particularly strong. Flat shackles are cut from sheet metal. They are lighter, but not as strong.
The shackle pin may be threaded or held in place by a cotter pin. Pins with a cross-hole in the tab at the outer end can be moused, or wired to the shackle for added security.
Shackles have a specific breaking load. To choose the appropriate diameter, determine the maximum stress the shackle will bear. Flat shackles, lighter and less costly than forged models, can be used where loads are light or in non-crucial settings.
 |
 |
Forged stainless steel D-shackle for sailboats 1202 Wichard
Commentary Self-locking D shackle forged in grade 316L stainless steel The pin is...
 |
 |
Forged stainless steel D-shackle for sailboats 00167-05 Eval
SHACKLES “D” TYPE STAINLESS STEEL Code 167-05, Diameter mm 5, W x L mm 10 x 19 Code 167-06,...
 |
 |
Unless otherwise stated dimensions are in mm, weights in g and loads in kg. Description...
 |
 |
Forged stainless steel D-shackle for sailboats SSACS SERIES TOOLEE INDUSTRIAL TECHNICAL INC.
AISI316 Stainless Steel Oversized Screw Pin U.S.Type Forged Stainless steel shackle, Yatch shackle, Dee shackle, Oversize screw pin shackle . Material...
 |
 |
Flat stainless steel D-shackle for sailboats (captive pin) A6065 Allen Brothers
Strip Shackle A range of...
 |
 |
Shackle for ship anchor chains (D type) 1011202 DESUN Industries
Under the commissioning of our customers, we have been working for years with the purchase of integrated mooring systems, including anchors, anchor chain cables and deck equipments. All...
 |
 |
Forged stainless steel D-shackle for sailboats S360 SINOX INTERNATIONAL
Field of application D-Shackles...
 |
 |
Forged stainless steel D-shackle for sailboats (captive pin) Petersen Stainless
The shake proof shackle incorporates an innovative...
 |
 |
Flat stainless steel D-shackle for sailboats (captive pin) EX1301 McLaughlin Boat Works
4 mm plate shackle to mount standard...
 |
 |
Forged stainless steel D-shackle for sailboats (captive pin) 41.65 Sea Sure
D-Shackle stainless steel with countersunk...
