DJ WASHERS is a flat washer manufacturer in China supplying carbon steel washers to DIN, ISO and EN standards for general fastening and load distribution. Bare, zinc-plated, hot-dip galvanized or Dacromet finish.
Produced to the following standards. Send the standard, size, finish and quantity for a quotation.
DIN 125AISO 7089DIN 9021USSSAE
Flat washers distribute clamp load and protect the mating surface.
Finish is selected by corrosion requirement, application and packing method.
Send enough data for size, coating and packing confirmation.
Send standard, size, material, finish, hardness and quantity. For non-standard sizes, add a drawing or sample.
Standard (e.g. DIN 125A, ISO 7089), size, material, surface finish, hardness target, quantity and packaging. For non-standard sizes, add a drawing or sample.
DIN 125A and ISO 7089 are closely aligned product-type flat washer standards. DIN 125A is the term buyers most often search; ISO 7089 is the international equivalent. We produce to either standard; just specify it in the RFQ.
Yes. Common finishes include zinc plating, mechanical zinc, hot-dip galvanizing, Dacromet and black oxide. Finish is confirmed at RFQ.
Weight per 1000 pieces helps estimate material cost, shipping weight and packing volume for a given quantity. The tables below list it per size for reference.
Yes. Send a drawing or sample with material, thickness and tolerance. Tooling can be built on order confirmation.
Dimensions and weight per 1000 pieces are kept for RFQ and shipping estimates.
Data range shown for M2-M72. DIN 125A is used as the customer-facing naming on this site.
| 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) |
|---|---|---|---|---|
| M2 | 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.
| 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 converted to mm for reference.
| 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 converted to mm for reference.
| 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 |
