Thick, large-OD, shoulder and non-standard-bore washers turned to your exact dimensions — in 6061, 304/316L, brass, titanium and PEEK. Compare each material's weight and cost live below before you order.
Thin standard flat washers are stamped by the million and cost pennies — an honest supplier tells you to buy those, not machine them. Here's the line we draw before quoting:
A thin standard flat washer in a common bore — DIN 125, ISO 7089, ordinary steel or 304. Boker's, Superior Washer, McMaster and KIPP stamp these by the thousand — order them there, far cheaper than any machined part.
A thick, load-spreading washer (DIN 7349 style), a large OD beyond catalog DIN 9021, a non-standard bore, a shoulder / stepped / spherical washer, a precision shim to an exact thickness, or an exotic material — titanium, 316L, brass, PEEK. Turning and milling jobs, not stamping.
Prefer to order from a sketch with no CAD? That route is covered on our machined washers from a sketch service page — same shop, same quality, just the no-drawing workflow.
| Type | What it does | Standard referenced |
|---|---|---|
| Flat washer | Spreads clamp load, protects the surface | DIN 125 / ISO 7089 |
| Large-OD (fender) | Wide OD spreads load on soft, oversized or slotted holes | DIN 9021 and beyond |
| Thick / heavy-duty | Heavy section for high clamp loads and reworkable faces | DIN 7349 style |
| Shoulder / stepped | A machined step locates a bearing, seal or spacer | To drawing |
| Spherical / conical seat | Self-aligning seat for angular clamping | DIN 6319 style |
| Precision shim washer | Turned to an exact thickness for setting end-float or gaps | To drawing, ±0.01 mm |
A washer is a simple ring, which makes it the clearest place to see how material choice changes weight, cost and function. The same 40 mm washer weighs three times more in 316L than in aluminum, costs a fraction of what titanium does, and behaves completely differently in a corrosive or electrically live joint. Start from the job:
| Material | Density | Why choose it for a washer |
|---|---|---|
| Aluminum 6061 | 2.70 g/cm³ | Lightest metal option, cheap, anodizes — weight-sensitive and cosmetic use |
| Aluminum 7075 | 2.81 g/cm³ | Aircraft-grade strength where a light washer still carries load |
| Stainless 304 | 7.9 g/cm³ | General corrosion resistance, food and outdoor use |
| Stainless 316L | 8.0 g/cm³ | Marine, washdown and chemical joints |
| Brass C360 | 8.5 g/cm³ | Electrical conductivity, decorative, non-sparking |
| Alloy steel 4140 | 7.85 g/cm³ | Highest clamp loads, heat-treatable, plated for corrosion |
| Titanium Gr5 | 4.43 g/cm³ | ~45% lighter than steel with high strength — weight-critical assemblies |
| Delrin / PEEK | 1.3–1.4 g/cm³ | Electrical insulation, damping, chemical resistance, no marring |
Rather than guess, put your washer's dimensions into the calculator and read the exact weight and relative material cost of every option side by side:
That's a thick large-OD washer — a turning job, not a stamping. We machine them from plate or bar in the exact OD, bore and thickness, in steel or 316L, with spares in the run.
Titanium washers are a routine turning job here. The calculator above shows the weight saved versus steel; we machine them Grade 5, deburred and passivated, one-off or in a set.
Non-metallic washers to a precise thickness and odd bore are machined, not stamped. We turn them in PEEK or Delrin to ±0.01 mm so they set the gap and insulate the joint.
Matched hardware: washers rarely travel alone — we machine the matching bolts, nuts, shaft collars and spacers in the same material and finish, so a joint arrives as one consistent, certified set.
Thin standard flat washers are stamped and cost pennies — buy those from Boker's, Superior Washer, McMaster or KIPP. Machine a washer when it's thick, large-OD, an odd bore, a shoulder or shim washer, or in titanium, 316L or PEEK.
Depends on load, environment and weight: 6061 light and cheap; 304/316L corrosion; 4140 for high clamp load; titanium to save weight; Delrin/PEEK to insulate. Use the calculator on this page to compare weight and relative cost for your exact size.
Yes — the most common request. We turn the bore and OD to your drawing, including in-between sizes, tight-tolerance shims and large fender washers beyond DIN 9021.
One piece. No tooling charge — a single thick 316L washer with an odd bore is a normal order. Unit price falls on batches.
Outside diameter, bore and thickness, the material or environment, and quantity — or the old washer. No CAD needed; a sketch or sample is enough. Quote in 24 hours.
OD, bore, thickness and material — or the old washer. Engineers reply in 24h.
// Qty & price
1 pc
Sample price
Confirm fit before a run
3–50
Unit price drops
Setup cost shared
50+
Best price
All tiers quoted upfront
Thick, large-OD, odd bore, titanium or PEEK — machined to your print or measured from the old one. Quote in 24 hours.