D-ring

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Item of hardware

title: "D-ring" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["hardware-(mechanical)"] description: "Item of hardware" topic_path: "general/hardware-mechanical" source: "https://en.wikipedia.org/wiki/D-ring" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Item of hardware ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/3/38/D-ring_cargo_tiedown.jpg" caption="A D-ring used to secure cargo in a utility trailer"] ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/0/0a/D-Ring&Weld-on_PivotLink.jpg" caption="isometric]] view)
(B) Weld-on pivot link; note the incorrect [[fillet weld]] call-out (bottom-right). The correct method of securing a weld-on pivot link is a [t weld] which consists of a [[perpendicular]] vee butt joint secured to the billet using a [[butt weld]] or [[fusion weld]]."] ::

A D-ring is an item of hardware, usually a tie-down metal ring shaped like a capital letter 'D' used primarily as a lashing or attachment point. The term is found interchangeably spelled in different forms, such as: D ring, D-ring or dee-ring.

A D-ring may be used at the end of a leather or fabric strap, or may be secured to a surface with a metal or fabric strap; though there are D-rings with a middle body designed to be welded to steel. Ideally, a D-ring swings freely after it has been secured. D-rings may vary in composition, geometry, weight, finish and load (rated) capacity.

Though there are differences, a weld-on pivoting link is commonly called a D-ring.

To minimize obstruction when the D-ring is not in use, recessed tie-down rings are designed that accommodate the D-ring so it is flush to the surface. There are some non-recessed designs that have an adhesive base. Work load limits are specified where appropriate.

For D-rings used in the bed of a truck to secure loads, regular preventative maintenance is important to avoid costly repairs.{{Cite journal | title=Don't Let D-rings Be "D" Problem. | url=https://www.dvidshub.net/publication/issues/70969#page=9 | work = Preventive Maintenance Monthly | date = May 2014 | issue = 738 | pages = 15 | ISSN = 0475-2953

D-rings may be made of plastic for applications such as fixtures for straps for hiking equipment.

Common uses

::figure[src="https://upload.wikimedia.org/wikipedia/commons/6/6d/D_ring_binder.jpg" caption="A D ring binder"] ::

Applications of D-rings include:

  • For light loading applications such as clothing and luggage, D-rings made of plastics such as nylon may be used, as they weigh less and are impervious to rusting.
  • As a component for lacing up items of footwear like hiking boots or any adjacent heavy-duty footwear.
  • At the end of a tow-rope or chain, to allow the creation a bow around an item or part of an item that is being towed.
  • With a chain to tether a boat to a dock or tree when it is being moored.
  • In theatres, commonly used where a piece of scenery has to be lifted or "flown". D-rings are attached to the tops or bottoms of flats with a "drift line" and turnbuckle attached to adjust the "trim".
  • A D-ring on an M16 or variant type rifle is used to increase the pressure on the extractor and reduce malfunctions. This D-ring is a rubber grommet shaped like a "D" and fits over the extractor spring adding tension to it.
  • On breathing sets and scuba divers' buoyancy compensators
  • A bit ring used on the bit of a horse.
  • A D-ring carabiner has a section which opens and can be secured, to attach a rope for climbing or caving or to attach other items.
  • A part of a saddle (see saddle#D-ring)
  • A D-ring binder is a type of ring binder which uses D-shaped rings to accommodate larger documents or more pages.
  • To attach a leash or tag to a collar or pet harness, or to a waist belt, either for dog walking or for sports where the dog is intended to pull.{{Cite journal | title = Dog-Walking Waist Belts: A waist belt can be used to secure your dog's leash to you for hands-free walking. | author = KERNS, NANCY | journal = Whole Dog Journal | date = May 2024 | volume = 27 | issue = 5 | pages = 14-16 | ISSN = 1097-5322
  • On a prisoner transport belt to accommodate a pair of handcuffs
  • As part of BDSM restraints, clothing, or furniture, to act as an attachment point for rope or chain
  • For hanging a framed picture, D-rings attached to a small metal plate with a hole in it are used: the D-ring is attached to the frame with a screw through the hole, and the wire to hang the picture passes through the D-ring.
  • Two adjacent D-rings can be used as an adjustable fastener for a strap in clothing such as overalls .

References

References

  1. "Plastic Rings and Loops".
  2. "Heavy Duty Carabiner Clips UK - 6x D-Ring Screw Lock {{!}} Best in Online - Maskura - Get Trendy, Get Fit".
  3. "D Ring Carabiner".
  4. "What should I know about ring binders?". MyBinding.
  5. "How to Make a Dog Collar On Your Own". Country Brook Design.
  6. (12 October 2014). "How to hang a picture". The Guardian.
  7. (25 November 2021). "How to Sew D-Ring Straps for Overalls".

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hardware-(mechanical)