Washers
Start with the specification.
Explore the product family, compare company-published files and prepare a requirement that a manufacturer can respond to.
Build a precise sourcing brief.
A manufacturer-specific product file for this family has not been published yet. The terms below help define a requirement; they are not claims about a particular factory.
Send a specification for review →Make every field count.
Use these as discovery terms. Confirm the controlling standard, grade, dimensions and inspection requirements for your application.
Material groups
Stainless steelCarbon steelSpring steelSize / diameter terms
M3–M8M10–M16M18–M30M33+Process terms
StampingHeat treatmentSurface finishingTell the factory what needs to be confirmed.
A product name alone leaves important choices open. Send one specification line for each configuration, state the quantity and destination, and identify the drawings or reports needed before a sample or production order.
- Part definitionStandard or drawing revision, dimensions, thread and tolerances.
- Material & finishGrade, property requirements, coating and appearance acceptance.
- Order & inspectionQuantity, destination, target date, reports and packaging.
Sourcing washers from China
What should a washer RFQ include beyond “M10 washer”?
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A useful washer RFQ names the controlling standard and edition (for example DIN 125 vs ISO 7089 vs DIN 127 vs DIN 9021), washer style (plain flat, spring lock, or fender / large OD), inside and outside diameters and thickness, material (including spring steel when that applies), finish, quantity, destination, and required documents. Standards listed on this page are discovery labels, not confirmed stock. Send one RFQ line per configuration—do not mix unfinished size, style, and material variants into a single line. Use the on-page RFQ starting point, then email [email protected] or WhatsApp +65 9869 5891 when the specification line is ready.
Are DIN 125, ISO 7089, DIN 127, and DIN 9021 catalogue rows interchangeable?
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Do not assume interchange from a shared nominal diameter or the nickname “washer”. Compare dimensional and mechanical requirements against the edition you will buy—including ID, OD, thickness, and spring or hardness needs when those apply—and obtain engineering approval for any proposed substitution. Atlas lists DIN 125, ISO 7089, DIN 127, and DIN 9021 as discovery starting points, not as proof that two rows are interchangeable substitutes. Pick one controlling standard on the RFQ and state the edition string. For how to read fastener standards in general, use https://honyawnatlas.com/knowledge/fastener-standards/—this family FAQ does not rewrite that desk.
How should I read washer ranges on Atlas when no manufacturer file is published?
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This page states that a manufacturer-specific product file for this family has not been published yet. The discovery standards and size bands here are requirement-definition terms; they are not claims about a particular factory, not catalogue envelopes from a named mill, and not confirmed inventory. Do not invent manufacturer diameter bands or cold/hot forge splits for washers, and do not copy published ranges from the hex-bolt, socket-head, or nuts families onto this page. Name the standard, style, and dimensions you need, then confirm supply and documents in the supplier’s written reply before Agree. Contact: [email protected] · WhatsApp +65 9869 5891.
Which documents and samples are typical for washer sourcing?
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Ask for material evidence and dimensional checks (ID, OD, thickness) that match the order class—not a generic certificate title. Typical RFQ lines: sample loop yes/no; dimensional report scope; material documentation as required by the buyer; packing and label marks. For spring-lock styles, state any hardness or elastic-performance evidence scope you will accept. Use https://honyawnatlas.com/knowledge/quality-documents/ for how to read issuer and lot linkage; this FAQ does not invent ISO or IATF numbers Atlas does not publish. List docs and samples on the first email so the sample loop and production quantity share one scope. Confirm acceptance in the supplier’s written reply before treating quote scope as agreed.
Can I put plain flat washers and spring / fender washers on the same RFQ line?
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No—not automatically. Discovery labels on this page cover different washer styles: DIN 125 / ISO 7089 for plain flat washers, DIN 127 for spring-lock washers, and DIN 9021 for fender / large-OD washers. Style, dimensions, and acceptance differ—keep them on separate RFQ lines and name the controlling standard and edition on each line. The absence of a manufacturer-specific product file on this page is not permission to mix styles into one unfinished line. Confirm style, size, material, and documents in writing before Agree. Email [email protected] · WhatsApp +65 9869 5891.