Custom & Non-Standard Stainless Steel Washers
Special OD, ID, thickness and hole shapes stamped to your drawing or sample — parts that standard catalogues do not cover. Tell us what the part has to do and we make it in 304, 316 or 316L.
Almost every dimension on the part is yours to specify.
If it is a flat or formed stainless washer and the catalogue does not carry it, that is exactly the work we are built for. Combine any of the variables below on a single part number.
Outer & inner diameter
Non-standard OD and ID to fit your bolt, stud or counterbore — oversized fender ODs, tight clearance IDs and everything between.
Thickness & gauge
Thin-series, standard or heavy-gauge thickness to set crush, stack height or load-spreading — held to your drawing, not just the nearest standard.
Special hole shapes
Square, D-shaped, slotted, keyed and multi-hole patterns for anti-rotation, cable routing, busbars and mounting plates.
Material grade
304 / A2, 316 / A4 and 316L / A4L only. We do not supply other grades.
Surface finish
One finish only: plain stainless, tumble-polished in sawdust (wood chips). No plating, coating or passivation.
Edge, chamfer & form
Deburred or rounded edges, chamfers, countersinks, dished and cupped profiles — formed beyond a plain flat blank.
Marking & identification
Part-number stamping, grade marks and batch identification stamped into the part for traceability on the line.
Packaging & kitting
Bulk, counted bags, blister packs, branded or kitted with mating fasteners — packed to your warehouse or end-user spec.
Export documentation
FOB / CIF, export packing and full HS-code paperwork so the custom run clears customs cleanly.
The catalogue stops where your part starts.
Distributors and OEM buyers reach us when the standard table no longer covers the part — a one-off OD, a square hole, a 316L variant a brand will not stock. We treat those high-mix, low-to-mid volume parts as the core business, not an exception, so you get a real quote instead of "not available."
- Your drawing is checked before we quote
- XRF grade check (PMI) on request
- First-article inspection before the full run is released
A drawing or a sample is all we need to start.
The more of the spec you can give, the tighter the quote. Missing a value? Send what you have — we will confirm the rest before anything is cut.
A drawing or print
PDF, DXF, STEP or a dimensioned sketch. Include OD, ID, thickness, hole shape, tolerances and any callouts. Hand-marked PDFs are welcome.
…or a physical sample
Mail us the part, or send clear photos with a caliper reading. We reverse-engineer the geometry and confirm it back before production.
Material grade
Tell us the grade (304, 316 or 316L). Unsure? Describe the environment and we will advise on grade.
Quantity & timing
Annual or per-order volume and any target date. Quantity drives tooling decisions and pricing tiers, so an estimate is enough to start.
Send the constraints you do know — the bolt size it fits, the gap it has to fill, the part it replaces — and we will close the gaps and confirm the full specification with you before cutting steel.
From drawing to dock in four steps.
The same disciplined flow we run on standard parts — with a confirmed specification and first-article sign-off before any custom run is released.
Send your RFQ
Drawing, DXF or sample plus material and quantity. Photos and prints welcome — we review every request.
Quote & sample
Priced offer with any tooling cost stated up front, plus a pre-production sample or first article for your approval.
Tooling, production & QC
Stamped to the approved spec, with dimensional and visual inspection of the batch.
Export & deliver
Export packing and documentation, FOB / CIF to your port, with reorders run from the confirmed specification.
Where custom washers earn their keep.
Bespoke geometry usually solves a real engineering problem — anti-rotation, sealing, load spread or fit. These are the sectors we quote most.
Marine & Offshore
316L parts to drawing for deck hardware, enclosures and immersion-rated assemblies.
Solar PV & Renewables
Special ODs and slotted holes for module clamps and mounting rails exposed for decades.
Automotive & Rail
D-hole and keyed washers for anti-rotation on vibration-rated joints and brackets.
Electrical & Busbar
Multi-hole and square-hole washers for grounding, bonding and busbar terminations.
Construction & Façade
Oversized and beveled washers for cladding, curtain wall and structural framing.
Industrial & OEM Assembly
Drawing-specific parts kitted into sub-assemblies and shipped to your line on schedule.
Traceable material. Verified first article.
Non-standard does not mean unverified. Every custom run is backed by the same documentation and inspection discipline we apply to standard parts — so the part you approve is the part you receive, batch after batch.
Grade check (PMI)
We verify the grade with our own handheld XRF spectrometer (PMI) and can include the reading with your order. We cannot issue EN 10204 3.1 mill certificates.
First-article inspection
A measured first article is approved against your drawing before the full run is released — dimensions, hole geometry and finish all checked.
Repeatable reorders
Your confirmed specification is retained, so every reorder runs to the same approved part — no re-quoting the geometry each time.
Buying questions, answered.
Can you make washers to my drawing or a sample?
Yes — both routes work. Send a PDF, DXF or STEP drawing with OD, ID, thickness and any tolerances called out, or mail us a physical sample and we reverse-engineer the geometry. Either way we confirm the full specification back to you and produce a first article before releasing the run. Our plant runs high-speed coil-fed stamping presses plus CNC machining centres for tooling and non-standard profiles, so drawing-to-production is a standard path for us, not an exception.
What dimensions and features can be customised?
OD, ID, thickness and gauge are the most common variables — held to your drawing, not just the nearest standard size. Beyond those: square, D-shaped, slotted or keyed holes; chamfers, countersinks and cupped profiles; deburred or rounded edges; part-number stamping for batch traceability; and packaging to your warehouse or line spec. Combine any of these on a single part number. Sizes run M2–M64 in metric and the equivalent imperial range.
Which materials and finishes are available for custom parts?
Standard grades are 304 (A2), 316 (A4) and 316L — stamped to full thickness from genuine full-spec coil (no under-gauge or recycled substitution). We verify the grade with our own handheld XRF spectrometer (PMI) and can include the reading with your order. There is one finish: plain stainless, tumble-polished in sawdust (wood chips). We do not offer plating, passivation, black oxide or zinc on these parts — grade selection is the corrosion solution here.
Is there a minimum order quantity for custom washers?
Yes. For non-standard or custom washers the minimum is 100 kg per item, and export orders start at about 600 kg in total (roughly one pallet); smaller totals can ship LCL through your forwarder. Small runs up to roughly 10,000 pieces are laser-cut without a die; from about 10,000 pieces a stamping die usually brings the unit price down. Send your drawing and target quantity and we quote the route that suits it.
Do I pay for a stamping die on a small run?
Usually not. For small runs, up to roughly 10,000 pieces, the blanks are laser-cut and then countersunk or surface-ground as your drawing requires, so there is no die to pay for and prototypes, pilot lots and spare parts stay economical. From about 10,000 pieces a stamping die normally pays for itself and the unit price drops. The quote states which route we priced and, if a die is involved, its cost.
Do you run first-article inspection on custom parts?
Yes. A measured first article is checked against your drawing — OD, ID, thickness, hole geometry and finish — before the full run is released. This is part of our ISO 9001:2015-certified process (cert No. 74326Q00174R001), documented and traceable, not an optional add-on. Your confirmed specification is retained so reorders run to the same approved part without re-quoting the geometry.
Can you provide PMI and export paperwork for custom orders?
We verify the grade with our own handheld XRF spectrometer (PMI) and can include the reading with your order. We cannot issue EN 10204 3.1 mill certificates. We ship FOB or CIF on request, with HS code 7318.22 on the documents. Contact Pan Dan: [email protected] or WhatsApp +86 153 5662 8355.
Tell us what you need.
Send specs or a drawing and we will come back with pricing, lead time and material options. No account needed.
- ✓ 304 / 316 / 316L, DIN & ASME or custom
- ✓ Replies from our sales team, usually within one business day
- ✓ Samples on request, courier freight paid by the buyer