Washers
Steel flat washers in bulk, to the size, material and finish you specify. Nylon washers are listed under engineering plastics.
- Finishes
- Plain, Zinc plated, Hot-dip galvanised, Dacromet, Geomet
- Materials
- Mild steel, High-tensile steel, Spring steel
- Inspection
- Before dispatch · video on request
- Incoterms
- All, EXW to DDP
Specification.
Stated as we supply it. Anything not listed is made to your drawing or standard; ask and we confirm before quoting.
| Standards | DIN 125, DIN 126, DIN 127, DIN 6902, DIN 6903, DIN 6916, DIN 7980, DIN 9021, ISO 7091, ISO 7416, IS 2016, IS 3063, IS 5370, IS 6649, IS 6735, BS 1802, BS 3410, BS 4320, ASTM F436, ASME B18.21.1, ASTM F436M, DIN 127B |
|---|---|
| Materials | Mild steel, High-tensile steel, Spring steel |
| Finishes | Plain, Zinc plated, Hot-dip galvanised, Dacromet, Geomet |
| Sizes | M3 to M72 (1/8 in to 2-1/2 in) |
Types: plain, heavy, spring, taper and hardened washers for structural (HSFG) bolts, in mild steel, high-tensile steel and spring steel. Hardness from 140 HV to 400 HV to suit the bolt grade, in sizes from M3 to M72.
Reference data by size.
For planning and freight. Your order is quoted to the standard, class and finish you specify.
| For bolt | Inner d1 (mm) | Outer d2 (mm) | Thickness h (mm) | Steel g per piece |
|---|---|---|---|---|
| M6 | 6.4 | 12.0 | 1.6 | 1.0 |
| M8 | 8.4 | 16.0 | 1.6 | 1.8 |
| M10 | 10.5 | 20.0 | 2.0 | 3.6 |
| M12 | 13.0 | 24.0 | 2.5 | 6.3 |
| M16 | 17.0 | 30.0 | 3.0 | 11.3 |
| M20 | 21.0 | 37.0 | 3.0 | 17.2 |
| M24 | 25.0 | 44.0 | 4.0 | 32.3 |
How to specify it.
A complete order line removes most of the back-and-forth. Write it in this order:
Plain washer - ISO 7089 - 12 - 200 HV - zinc plated
- Chamfer not statedISO 7089 is plain; ISO 7090 is chamfered on one side. DIN 125-A is close to ISO 7089.
- Hardness too low200 HV suits 8.8 bolts; ask for 300 HV with 10.9 bolts.
- Size written as M12Washers are designated by the bolt size number, so a washer for M12 is size 12.
Photographs.
Inspection you can watch.
Every order is visually inspected before dispatch. You choose how closely you look.
Before dispatch
Visual inspection against the agreed specification.
On a video call
Watch the inspection live, on request.
Third party
An inspection agency of your choice, on request.
What to send for a quote.
The more of this you include, the faster and firmer the quotation.
- Drawing, sample photo or the standard the part must meet
- Material, grade or property class, and finish
- Size or dimensions, and quantity per order and per year
- Destination port or city, and the Incoterm you prefer
- Documents you need with the shipment, and whether you want video or third-party inspection
Questions buyers ask.
What size washer fits an M12 bolt?
ISO 7089 size 12: 13.0 mm inner diameter, 24.0 mm outer diameter and 2.5 mm thick.
What is the difference between ISO 7089 and ISO 7090?
Same dimensions; ISO 7090 has a chamfer on the outer edge of one face. DIN 125-A is close to ISO 7089.
