DJ WASHERS produces carbon steel flat washers for bulk orders, including multiple sizes with different quantities in one order. Start with your required standard, size and quantity for each item; we confirm the combination and price in the quotation.
Use the standard and edition required by your drawing or purchasing specification. DIN 125A and ISO 7089 are not automatically interchangeable: form, dimensions, tolerances, material, hardness and finish need to match the order requirement. See the DIN 125A vs ISO 7089 guide. The reference tables below do not establish stock availability or a confirmed supply range.
DIN 125AISO 7089DIN 9021USSSAE
Flat washers distribute clamp load and protect the mating surface.
Choose the finish requirement around the application, corrosion exposure and assembly requirements, not appearance alone.
These are examples for discussion, not a list of finishes confirmed for every size. Finish and hardness feasibility are reviewed for the order; neither can be inferred from the tables. See the surface finish guide.
Start with the standard, size and quantity for each item.
Orders are organized by standard, size, material and batch quantity. The workflow includes stamping, dimensional checks during production, finished-batch inspection and records for batch traceability. See our production process and inspection and traceability workflow. Include any specific inspection or document requirements with your item list for order review.
Send your standard, size and quantity for each item. Multiple sizes can make up the 10-metric-tonne minimum order, with different quantities per size; the combination and price are confirmed in the quotation. Add special requirements if needed, or a drawing for non-standard dimensions.
Yes. The minimum order is 10 metric tonnes in total, not per size. You can combine multiple sizes with a different quantity for each; the exact combination and price are confirmed in the quotation.
Start with the standard, size and quantity for each item. Add any special finish, hardness, packing or document requirements. For non-standard dimensions, send a drawing with tolerances for feasibility review.
The usual packing is a corrugated carton with about 25 kg net weight. Small packs with a fixed piece count can also be agreed. Include any carton marking or pallet requirements in your inquiry.
No. They show reference dimensions and approximate weight per 1000 pieces. Production and supply for each requested size, finish and quantity require factory confirmation.
Yes. Add the requirement and intended application to your item list. The factory confirms feasibility for the order; this page does not promise every finish or hardness for every size.
Not automatically. Check the standard edition, form, dimensions, tolerances, material, hardness and finish before ordering.
These tables support RFQ discussion and shipping estimates. Availability, tolerances and supply scope require factory confirmation.
Reference dimensions and approximate weight are shown for M2-M72 in this table; this is not a confirmed production or supply range. State the required size in the RFQ and wait for factory confirmation. DIN 125A is a customer-facing designation; verify the standard and edition.
| Bolt size | d nominal (= min) | d max | dc max (= nominal) | dc min | h nominal | h max | h min | Approx. steel weight / 1000 pcs (kg) |
|---|---|---|---|---|---|---|---|---|
| M2 | 2.2 | 2.34 | 5 | 4.70 | 0.3 | 0.35 | 0.25 | 0.037 |
| M2.3 | 2.5 | 2.64 | 6 | 5.70 | 0.5 | 0.55 | 0.45 | 0.092 |
| M2.5 | 2.7 | 2.84 | 6 | 5.70 | 0.5 | 0.55 | 0.45 | 0.088 |
| M2.6 | 2.8 | 2.94 | 7 | 6.64 | 0.5 | 0.55 | 0.45 | 0.127 |
| M3 | 3.2 | 3.38 | 7 | 6.64 | 0.5 | 0.55 | 0.45 | 0.119 |
| M3.5 | 3.7 | 3.88 | 8 | 7.64 | 0.5 | 0.55 | 0.45 | 0.155 |
| M4 | 4.3 | 4.48 | 9 | 8.64 | 0.8 | 0.9 | 0.7 | 0.308 |
| M5 | 5.3 | 5.48 | 10 | 9.64 | 1 | 1.1 | 0.9 | 0.443 |
| M6 | 6.4 | 6.62 | 12 | 11.57 | 1.6 | 1.8 | 1.4 | 1.02 |
| M7 | 7.4 | 7.62 | 14 | 13.57 | 1.6 | 1.8 | 1.4 | 1.39 |
| M8 | 8.4 | 8.62 | 16 | 15.57 | 1.6 | 1.8 | 1.4 | 1.83 |
| M10 | 10.5 | 10.77 | 20 | 19.48 | 2 | 2.2 | 1.8 | 3.57 |
| M12 | 13 | 13.27 | 24 | 23.48 | 2.5 | 2.7 | 2.3 | 6.27 |
| M14 | 15 | 15.27 | 28 | 27.48 | 2.5 | 2.7 | 2.3 | 8.62 |
| M16 | 17 | 17.27 | 30 | 29.48 | 3 | 3.3 | 2.7 | 11.3 |
| M18 | 19 | 19.33 | 34 | 33.38 | 3 | 3.3 | 2.7 | 14.7 |
| M20 | 21 | 21.33 | 37 | 36.38 | 3 | 3.3 | 2.7 | 17.2 |
| M22 | 23 | 23.33 | 39 | 38.38 | 3 | 3.3 | 2.7 | 18.3 |
| M24 | 25 | 25.33 | 44 | 43.38 | 4 | 4.3 | 3.7 | 32.3 |
| M26 | 27 | 27.33 | 50 | 49.38 | 4 | 4.3 | 3.7 | 43.7 |
| M27 | 28 | 28.33 | 50 | 49.38 | 4 | 4.3 | 3.7 | 42.3 |
| M28 | 29 | 29.33 | 50 | 49.38 | 4 | 4.3 | 3.7 | 40.9 |
| M30 | 31 | 31.39 | 56 | 55.26 | 4 | 4.3 | 3.7 | 53.6 |
| M32 | 33 | 33.62 | 60 | 58.80 | 5 | 5.6 | 4.4 | 77.4 |
| M33 | 34 | 34.62 | 60 | 58.80 | 5 | 5.6 | 4.4 | 75.3 |
| M35 | 36 | 36.62 | 66 | 64.80 | 5 | 5.6 | 4.4 | 94.3 |
| M36 | 37 | 37.62 | 66 | 64.80 | 5 | 5.6 | 4.4 | 92.1 |
| M38 | 39 | 39.62 | 72 | 70.80 | 6 | 6.6 | 5.4 | 136 |
| M39 | 40 | 40.62 | 72 | 70.80 | 6 | 6.6 | 5.4 | 133 |
| M40 | 41 | 41.62 | 72 | 70.80 | 6 | 6.6 | 5.4 | 130 |
| M42 | 43 | 43.62 | 78 | 76.80 | 7 | 8 | 6 | 183 |
| M45 | 46 | 46.62 | 85 | 83.60 | 7 | 8 | 6 | 220 |
| M48 | 50 | 50.62 | 92 | 90.60 | 8 | 9 | 7 | 294 |
| M50 | 52 | 52.74 | 92 | 90.60 | 8 | 9 | 7 | 284 |
| M52 | 54 | 54.74 | 98 | 96.60 | 8 | 9 | 7 | 330 |
| M55 | 57 | 57.74 | 105 | 103.60 | 9 | 10 | 8 | 431 |
| M56 | 58 | 58.74 | 105 | 103.60 | 9 | 10 | 8 | 425 |
| M58 | 60 | 60.74 | 110 | 108.60 | 9 | 10 | 8 | 472 |
| M60 | 62 | 62.74 | 110 | 108.60 | 9 | 10 | 8 | 458 |
| M64 | 66 | 66.74 | 115 | 113.60 | 9 | 10 | 8 | 492 |
| M68 | 70 | 70.74 | 120 | 118.60 | 10 | 11 | 9 | 586 |
| M72 | 74 | 74.74 | 125 | 123.40 | 10 | 11 | 9 | 626 |
| Size | Inner Ø d (mm) | Outer Ø dc (mm) | Thickness h (mm) | Weight /1000 pcs (kg) |
|---|---|---|---|---|
| M1.6 | 1.7 | 4 | 0.3 | 0.024 |
| M2 | 2.2 | 5 | 0.3 | 0.037 |
| M2.5 | 2.7 | 6 | 0.5 | 0.088 |
| M3 | 3.2 | 7 | 0.5 | 0.119 |
| M3.5 | 3.7 | 8 | 0.5 | 0.155 |
| M4 | 4.3 | 9 | 0.8 | 0.308 |
| M5 | 5.3 | 10 | 1 | 0.443 |
| M6 | 6.4 | 12 | 1.6 | 1.02 |
| M8 | 8.4 | 16 | 1.6 | 1.83 |
| M10 | 10.5 | 20 | 2 | 3.57 |
| M12 | 13 | 24 | 2.5 | 6.27 |
| M14 | 15 | 28 | 2.5 | 8.62 |
| M16 | 17 | 30 | 3 | 11.3 |
| M18 | 19 | 34 | 3 | 14.7 |
| M20 | 21 | 37 | 3 | 17.2 |
| M22 | 23 | 39 | 3 | 18.3 |
| M24 | 25 | 44 | 4 | 32.3 |
| M27 | 28 | 50 | 4 | 42.3 |
| M30 | 31 | 56 | 4 | 53.6 |
| M33 | 34 | 60 | 5 | 75.3 |
| M36 | 37 | 66 | 5 | 92.1 |
| M39 | 42 | 72 | 6 | 133 |
| M42 | 45 | 78 | 8 | 183 |
| M45 | 48 | 85 | 8 | 220 |
| M48 | 52 | 92 | 8 | 294 |
| M52 | 56 | 98 | 8 | 330 |
| M56 | 62 | 105 | 10 | 425 |
| M60 | 66 | 110 | 10 | 458 |
| M64 | 70 | 115 | 10 | 492 |
Large OD flat washers for broader bearing area in bolted joints. Dimensions are reference data; production and supply require factory confirmation.
| Bolt size | d nominal (= min) | d max | dc nominal (= max) | dc min | h nominal | h max | h min | Approx. steel weight / 1000 pcs (kg) |
|---|---|---|---|---|---|---|---|---|
| M2.5 | 2.7 | 2.84 | 8 | 7.64 | 0.8 | 0.9 | 0.7 | 0.28 |
| M3 | 3.2 | 3.38 | 9 | 8.64 | 0.8 | 0.9 | 0.7 | 0.349 |
| M3.5 | 3.7 | 3.88 | 11 | 10.57 | 0.8 | 0.9 | 0.7 | 0.529 |
| M4 | 4.3 | 4.48 | 12 | 11.57 | 1 | 1.1 | 0.9 | 0.774 |
| M5 | 5.3 | 5.48 | 15 | 14.57 | 1.2 | 1.4 | 1 | 1.46 |
| M6 | 6.4 | 6.62 | 18 | 17.57 | 1.6 | 1.8 | 1.4 | 2.79 |
| M7 | 7.4 | 7.62 | 22 | 21.48 | 2 | 2.2 | 1.8 | 5.29 |
| M8 | 8.4 | 8.62 | 24 | 23.48 | 2 | 2.2 | 1.8 | 6.23 |
| M10 | 10.5 | 10.77 | 30 | 29.48 | 2.5 | 2.7 | 2.3 | 12.2 |
| M12 | 13 | 13.27 | 37 | 36.38 | 3 | 3.3 | 2.7 | 22.2 |
| M14 | 15 | 15.27 | 44 | 43.38 | 3 | 3.3 | 2.7 | 31.6 |
| M16 | 17 | 17.27 | 50 | 49.38 | 3 | 3.3 | 2.7 | 40.9 |
| M18 | 20 | 20.52 | 56 | 54.1 | 4 | 4.6 | 3.4 | 67.4 |
| M20 | 22 | 22.52 | 60 | 58.1 | 4 | 4.6 | 3.4 | 76.8 |
| M24 | 26 | 26.84 | 72 | 70.1 | 5 | 6 | 4 | 139 |
| M30 | 33 | 34 | 92 | 89.8 | 6 | 7 | 5 | 273 |
| M36 | 39 | 40 | 110 | 107.8 | 8 | 9.2 | 6.8 | 522 |
USS wide pattern, imperial sizing commonly used in North and South American markets. Dimensions are converted to mm for reference only; production and supply require factory confirmation.
| Size | Inner Ø d (mm) | Outer Ø dc (mm) | Thickness h (mm) | Weight /1000 pcs (kg) |
|---|---|---|---|---|
| 3/16 | 6.22 | 14.66 | 1.65 | 1.39 |
| 1/4 | 7.80 | 19.02 | 2.03 | 3.09 |
| 5/16 | 9.40 | 22.99 | 2.64 | 5.79 |
| 3/8 | 11.00 | 26.16 | 2.64 | 7.41 |
| 7/16 | 12.57 | 32.51 | 2.64 | 11.83 |
| 1/2 | 14.15 | 35.69 | 3.35 | 18.29 |
| 9/16 | 15.75 | 38.07 | 3.35 | 20.47 |
| 5/8 | 17.30 | 45.21 | 4.06 | 36.55 |
| 3/4 | 20.45 | 51.56 | 4.50 | 52.46 |
| 7/8 | 23.65 | 57.91 | 4.88 | 71.72 |
| 1 | 26.80 | 64.26 | 4.88 | 87.55 |
| 1-1/8 | 31.57 | 70.61 | 4.88 | 102.38 |
| 1-1/4 | 34.75 | 76.96 | 4.88 | 121.02 |
| 1-3/8 | 37.85 | 83.69 | 5.41 | 152.09 |
| 1-1/2 | 41.02 | 90.04 | 5.41 | 175.38 |
SAE narrow pattern, imperial sizing commonly used in North and South American markets. Dimensions are converted to mm for reference only; production and supply require factory confirmation.
| Size | Inner Ø d (mm) | Outer Ø dc (mm) | Thickness h (mm) | Weight /1000 pcs (kg) |
|---|---|---|---|---|
| 6# | 3.84 | 9.91 | 1.65 | 0.66 |
| 8# | 4.65 | 11.51 | 1.65 | 0.85 |
| 10# | 5.44 | 13.08 | 1.65 | 1.09 |
| 12# | 6.22 | 14.66 | 2.03 | 1.74 |
| 1/4 | 7.01 | 16.26 | 2.03 | 2.13 |
| 5/16 | 8.61 | 17.86 | 2.03 | 2.24 |
| 3/8 | 10.19 | 21.01 | 2.03 | 3.37 |
| 7/16 | 11.79 | 23.80 | 2.03 | 4.26 |
| 1/2 | 13.36 | 27.74 | 3.07 | 8.8 |
| 9/16 | 14.96 | 30.12 | 3.07 | 10.19 |
| 5/8 | 16.48 | 34.09 | 3.07 | 13.1 |
| 3/4 | 20.45 | 38.07 | 4.06 | 20.78 |
| 7/8 | 23.65 | 45.21 | 4.06 | 30.17 |
| 1 | 26.80 | 51.56 | 4.06 | 39.58 |
| 1-1/8 | 31.57 | 57.91 | 4.06 | 48.12 |
| 1-1/4 | 34.75 | 64.26 | 4.88 | 73.29 |
| 1-3/8 | 37.92 | 70.61 | 4.88 | 89.21 |
| 1-1/2 | 41.10 | 76.96 | 4.88 | 106.65 |
