01 — Hinges & brackets
Butt hinges, concealed cabinet hinges, corner braces and mounting brackets. Load-rated: our 100 mm butt hinge is tested to 40 kg per pair over 200,000 open-close cycles.
Steel hardware, stamped and machined to drawing.
We make hinges, brackets and fasteners for furniture, cabinets, doors and automotive interiors. Send a drawing or a sample and we quote in 48 hours. Standard parts ship from stock; custom parts run 15–20 days from tooling approval.
Standard specifications
| Item | Material | Finish | Size range | MOQ |
|---|---|---|---|---|
| Butt hinges | Cold-rolled steel, SS304 | Zinc plated, nickel, black oxide | 2″ – 6″ | 2,000 pcs |
| Concealed hinges | Steel, zinc alloy cup | Nickel plated | 26 / 35 mm cup | 2,000 pcs |
| Angle brackets | Q235 steel, SS201/304 | Zinc, powder coat | 20 – 200 mm | 1,000 pcs |
| Hex bolts & screws | Carbon steel 4.8 / 8.8, SS304 | Zinc, Dacromet | M4 – M16 | 5,000 pcs |
| Custom stamping | Steel, stainless, aluminium, brass | Per drawing | 0.5 – 6.0 mm thick | 5,000 pcs |
Tolerances: stamping ±0.10 mm, CNC ±0.02 mm. Salt-spray test: zinc plating 48 h, Dacromet 500 h, no white rust. Mill certificates and test reports supplied with each shipment.
Product lines
02 — Fasteners
Hex bolts, self-tapping screws, nuts, washers and rivets, in carbon steel and stainless. Thread checked with go/no-go gauges on every lot; hardness tested to the grade marking.
03 — Custom metal stamping
Progressive-die stamping up to 400 tonnes, then CNC, tapping and deburring in-house. We build the die from your drawing; die cost is quoted per part and amortised over the first 50,000 pieces.
How an order runs
- 1 · StampingCoil is fed to the progressive die. First article is measured against the drawing before the run starts.
- 2 · CNCHoles, slots and threads are machined where the die cannot reach. ±0.02 mm on critical dimensions.
- 3 · FinishingDeburring, then plating or powder coat. Zinc, nickel, Dacromet or RAL colours to order.
- 4 · QC2.5% AQL inspection, salt-spray and load tests. A copy of the inspection sheet travels with the goods.
Stock & lead times
Our Ningbo warehouse holds roughly 4,000 standard SKUs — 500,000 pieces on the shelf. Standard parts ship in 3–5 days. Custom parts: 15–20 days after tooling approval; repeat orders 10–12 days. Export packing is fumigation-free plywood or seaworthy cartons, FOB Ningbo.
Welding and fabrication for heavier brackets and frames are done in-house, so a mixed order of stamped parts and welded assemblies ships together.
Request a quotation
Send the drawing, material, finish and quantity. Standard parts get a price in 24 hours; custom parts in 48 hours.
Ironstone Hardware Co., Ltd. · Ningbo, Zhejiang, China · ISO 9001:2015 · Mon–Sat, 08:00–17:30 CST