Reference illustration — produced to your drawing
Washers
Convex Washers
A convex washer has a spherical domed top that seats into a matching conical or concave seat, letting a bolted joint align itself at an angle. It compensates for slight angular misalignment.
Used with a mating concave washer to correct angular misalignment in jigs, fixtures and machinery. Bought by toolmakers and machine builders.
Standard
DIN 6319
Size range
M6 – M36
MOQ
From 50 pcs
Lead time
Samples 5–10 days
What we produce
- Carbon steel 1045 or stainless steel 304
- Spherical convex top with a flat or concave seat
- Works with a mating concave washer
- Plain or zinc-plated finish
- Machined or cold-formed to ISO 2768-m
Specification notes
- Usually supplied as a convex and concave pair
- Seat radius is quoted per drawing
- Minimum order quantity starts from 50 pieces
Specifications
Every line below is a starting point, not a limit. Non-standard sizes, special threads and unusual materials are what we do — send the drawing and we confirm what fits.
| Standard | DIN 6319 |
|---|---|
| Size range | M6 – M36 |
| Threads | Not applicable |
| Head / geometry | Spherical convex seating face; no drive |
| Materials | Stainless steel 301 / 303 / 304 / 304L / 316 / 316L / 410 / 416 / 17-4PH · carbon steel 1045 / 1215 / 12L14 · alloy steel 4130 / 4140 · aluminium 2024 / 5052 / 6061 / 7075 · brass · bronze · copper · titanium |
| Finishes | As machined · black oxide · zinc plating · nickel plating · chrome plating · anodizing · passivation (through our vetted partner network) |
| Precision | ±0.01 mm on features that locate, seal or fit; ISO 2768-m for general dimensions |
| Marking | Head marking, grade marking or your own identification mark per drawing |
| Documents | Material certificate (MTR) with every batch, plus pre-shipment photos before dispatch |
| MOQ | From 50 pieces per type and material · samples from 1 piece |
| Sample lead time | 5–10 days |
| Production lead time | 25–35 days after sample approval |
| Quote | Within 24 hours, with DFM feedback |
Other washers we manufacture
See all 179 part types →
Send us the drawing
We reply within 24 hours with DFM feedback, a process route and a price. Samples from 1 piece, production from 50 pieces, shipped from Qidong City, Jiangsu Province, China.
Request a quote