Connecting & turning
D-Ring
A D-shaped ring that anchors a strap, webbing or chain and lets it pass through or clip on. In bags it secures the shoulder strap to the body; in belts and straps it forms the adjustment or attachment point. A zinc die-cast version takes a logo and a shaped profile and is made in-house, while stamped or wire-formed versions are cheaper and lighter and come from the supply chain.
Overview
- Made by
- Qinxi in-house
- Materials
- Zinc alloy (die-cast version), Brass (stamped version), Iron / low-carbon steel (stamped version), Stainless steel (stamped version)
- Finish options
- Nickel, Nickel-free, Antique brass, Gunmetal, Black nickel, Matte brushed, Lacquer sealed
- Customization
- Inner width matched to the webbing or strap, Logo or shaped profile on the die-cast version, Plating matched to the rest of the hardware set, Wire diameter for the stamped / wire-formed version
Applications
- BackpacksStrap-to-body anchor; size matches the webbing width
- Crossbody bags
- Handbags
- BeltsForms the keeper or the free-end anchor behind the buckle
- Coats & jacketsShoulder-strap or belt loop attachment on outerwear
Selection tips
- Decide die-cast or stamped/wire at the enquiry stage: die-cast takes a logo and a thicker shaped section but needs a tool; stamped/wire is cheaper for plain rings.
- Match the inner width to the webbing: a ring that is too narrow binds the strap, too wide and the strap slips out of the intended path.
- Ferrous stamped versions trigger garment needle detectors; for 100% needle-detected markets specify brass or a non-magnetic stainless grade and confirm on the buyer's detector.
- A sweatband or belt is prolonged skin contact, so ask for nickel-free plating on EU orders to meet REACH nickel-release limits.
Manufacturing process & quality control points
- 1
Qinxi owns the 3D model and the die for the zinc die-cast D-ring, so this version is made in-house. The same part is also offered as a stamped or wire-formed version where Qinxi has no stamping or cold-heading line, so that version is sourced from the supply chain. The route is fixed at enquiry stage.
Quality control points
- Inner width vs webbing width · Engineering review of the enquiry · Each new tool or project
- 2
The D-ring is die cast on Qinxi's own line, de-gated and tumbled. The bend radius at the corners is the load path, so fill and porosity there are checked rather than only the flat legs.
Quality control points
- Fill and porosity at the corner radius · Visual check under 600-1000 lx, 300 mm distance · First 5 pieces per cavity per shift
- Inner width and leg flatness · Caliper and go/no-go gauge · Per lot, AQL 2.5 (ISO 2859-1 general level II)
- 3
Stamping / wire forming (supply-chain version)
Supply chain / partnersStamped or wire-formed D-rings are blanked, bent and welded or soldered at the joint. Qinxi has no stamping or cold-heading line, so this version is supplied by the supply chain to the same inner-width and plating specification.
Quality control points
- Joint weld / solder integrity · Pull to a set load, inspect joint · Per lot, AQL 2.5 (ISO 2859-1 general level II)
- 4
Parts are de-gated, deburred and tumble-polished. This is part of the die-casting process and is done in-house.
Quality control points
- Sharp edge / burr · Gloved touch check plus 10x loupe · Per lot, AQL 2.5 (ISO 2859-1 general level II)
- 5
Plating
Supply chain / partnersPlating is outsourced to Qinxi's finishing partners; coating thickness and corrosion are verified against the agreed specification.
Quality control points
- Coating thickness · XRF coating thickness gauge (ISO 3497 / ASTM B568) · One set per plating colour per batch
- Corrosion resistance · Neutral salt spray, 5% NaCl, 35 C (ISO 9227 / GB/T 10125) · One sample set per batch
- 6
Pull and dimensional check
Supply chain / partnersFinished rings are checked for inner width and pulled to an agreed load to confirm the corner radius and joint hold. For the die-cast version this is Qinxi's own incoming check; for the supply-chain version it is the supplier's test with Qinxi spot-checking.
Quality control points
- Pull-to-load and failure mode · Universal tensile machine, 50 mm/min, record peak · One sample set per batch
Relevant compliance
- EU REACH (SVHC)
EU
All metal & plastic parts, electroplated components and fabric coatings
- California Proposition 65
US
All products sold into California containing listed chemicals
- Nickel release (REACH Annex XVII Entry 27)
EU
Nickel-plated metal parts in prolonged & direct skin contact (handles, shafts, rings)
Get a quote for d-ring
Custom shapes, finishes and logos. Email us your artwork or sample photos.