DJ WASHERS is a structural washer bulk supplier in China for steel construction washers: EN 14399-6 / DIN 6916 (HV), ASTM F436 / F436M. Hardness EN 14399-6: 300-370 HV; DIN 6916: 295-350 HV, with hot-dip galvanized, Dacromet, phosphated or black finish.
Structural washer RFQs are reviewed against the confirmed EN, DIN or ASTM standard and hardness requirement.
EN 14399-6DIN 6916ASTM F436ASTM F436MISO 7416
Structural washers are hardened washers for preloaded steel construction bolting.
Coating must match the structural standard and project environment.
Structural washer RFQs need both dimensional and document requirements.
Send standard, size, material, finish, hardness and quantity. For non-standard sizes, add a drawing or sample.
Send the standard, bolt size, material grade, surface finish, hardness requirement, quantity and any document requirements.
Yes. Quote review can be based on ASTM F436 / F436M, EN 14399-6, DIN 6916 or a buyer drawing.
Common finishes include black oxide, electro-zinc plating, mechanical zinc plating and hot-dip galvanizing, subject to order confirmation.
Dimensions and weight per 1000 pieces are kept for RFQ and shipping estimates.
Dimension table only. No static thousand-piece weight is published for this standard on the website.
| Item | M12 | (M14) | M16 | (M18) | M20 | M22 | M24 | M27 | M30 | M36 |
|---|---|---|---|---|---|---|---|---|---|---|
| d inside diameter max | 13.27 | 15.27 | 17.27 | 19.33 | 21.33 | 23.33 | 25.33 | 28.52 | 31.62 | 37.62 |
| d inside diameter min (= nominal) | 13 | 15 | 17 | 19 | 21 | 23 | 25 | 28 | 31 | 37 |
| dc outside diameter max (= nominal) | 24 | 28 | 30 | 34 | 37 | 39 | 44 | 50 | 56 | 66 |
| dc outside diameter min | 23.48 | 27.48 | 29.48 | 33.38 | 36.38 | 38.38 | 43.38 | 49 | 54.8 | 64.8 |
| h thickness nominal | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 6 |
| h thickness max | 3.3 | 3.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 5.6 | 5.6 | 6.6 |
| h thickness min | 2.7 | 2.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 4.4 | 4.4 | 5.4 |
| c chamfer min | 0.5 | 0.5 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 1 | 1 | 1.25 |
| c chamfer max | 1 | 1 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 2 | 2 | 2.5 |
| e edge min (= nominal) | 1.6 | 1.6 | 1.6 | 2 | 2 | 2 | 2 | 2.5 | 2.5 | 2.5 |
| e edge max | 1.9 | 1.9 | 1.9 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 |
Structural washer dimensions and approximate thousand-piece weights for RFQ reference.
| Bolt size | d nominal (= min) | d max | dc nominal (= max) | dc min | h nominal | h max | h min | c nominal (= min) | c max | e approx. | Approx. steel weight / 1000 pcs (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 13 | 13.27 | 24 | 23.48 | 3 | 3.3 | 2.7 | 1.6 | 1.9 | 0.5 | 7.03 |
| M16 | 17 | 17.27 | 30 | 29.48 | 4 | 4.3 | 3.7 | 1.6 | 1.9 | 1 | 14.6 |
| M20 | 21 | 21.33 | 37 | 36.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 | 19.6 |
| M22 | 23 | 23.33 | 39 | 38.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 | 24.3 |
| M24 | 25 | 25.33 | 44 | 43.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 | 30.6 |
| M27 | 28 | 28.52 | 50 | 49 | 5 | 5.6 | 4.4 | 2.5 | 3 | 1 | 50.2 |
| M30 | 31 | 31.62 | 56 | 54.8 | 5 | 5.6 | 4.4 | 2.5 | 3 | 1 | 63.2 |
| M36 | 37 | 37.62 | 66 | 64.8 | 6 | 6.6 | 5.4 | 3 | 3.5 | 1.5 | 115 |
Additional production reference sizes from RFQ records. Dimensions and hardness should be confirmed against the buyer drawing or order requirement before production.
| Size | Reference dimensions (mm) | Hardness / finish reference | Approx. weight / 1000 pcs (kg) |
|---|---|---|---|
| M39 | 40.4-41.02 × 70.8-72 × 5.4-6.6 | 300 HV or HRC 35-45 / plain finish | 132 |
| M42 | 43.4-44 × 76.8-78 × 6.8-9.2 | 300 HV or HRC 35-45 / plain finish | 205 |
| M45 | 46.4-47 × 83.6-85 × 6.8-9.2 | 300 HV, HRC 35-45 or 38-45 HRC / plain finish | 248 |
| M48 | 50 × 92 × 8 | 300 HV or HRC 35-45 / plain finish | 295 |
| M52 | 54 × 100 × 10 | HRC 35-45 / plain finish | 437 |
| M56 | 58 × 105 × 10 | 300 HV or HRC 35-45 / plain finish | 472 |
| M64 | 66 × 115 × 10 | 300 HV or HRC 35-45 / plain finish | 550 |
| M72 | 72 × 123.6 × 10 | 300 HV / plain finish | 622 |
| Size | Inner Ø d (mm) | Outer Ø dc (mm) | Thickness h (mm) | Weight /1000 pcs (kg) |
|---|---|---|---|---|
| M12 | 14.0 | 27.0 | 4.6 | 12.651 |
| M14 | 16.0 | 30.0 | 4.6 | 15.286 |
| M16 | 18.0 | 34.0 | 4.6 | 19.748 |
| M20 | 22.0 | 42.0 | 4.6 | 30.381 |
| M22 | 24.0 | 44.0 | 4.6 | 33.538 |
| M24 | 26.0 | 50.0 | 4.6 | 44.98 |
| M27 | 30.0 | 56.0 | 4.6 | 55.14 |
| M30 | 33.0 | 60.0 | 4.6 | 61.921 |
| M36 | 39.0 | 72.0 | 4.6 | 90.33 |
| M42 | 45.0 | 84.0 | 7.2 | 182.995 |
| M48 | 52.0 | 95.0 | 7.2 | 229.917 |
| M56 | 62.0 | 107.0 | 8.7 | 346.948 |
| M64 | 70.0 | 118.0 | 8.7 | 411.684 |
| Size | Inner Ø d (mm) | Outer Ø dc (mm) | Thickness h (mm) | Weight /1000 pcs (kg) |
|---|---|---|---|---|
| 1/4 | 7.14 | 15.88 | 1.66 | 2.061 |
| 5/16 | 8.73 | 17.46 | 1.66 | 2.346 |
| 3/8 | 10.32 | 20.64 | 1.66 | 3.276 |
| 7/16 | 11.91 | 23.42 | 1.66 | 4.17 |
| 1/2 | 13.49 | 26.99 | 3.48 | 11.719 |
| 5/8 | 17.46 | 33.34 | 3.8 | 18.879 |
| 3/4 | 20.64 | 37.31 | 3.8 | 22.611 |
| 7/8 | 23.81 | 44.45 | 3.98 | 34.524 |
| 1 | 28.57 | 50.8 | 3.98 | 43.232 |
| 1-1/8 | 31.75 | 57.15 | 3.98 | 55.337 |
| 1-1/4 | 34.92 | 63.5 | 3.98 | 68.924 |
| 1-3/8 | 38.1 | 69.85 | 3.98 | 83.994 |
| 1-1/2 | 41.27 | 76.2 | 3.98 | 100.546 |
| 1-3/4 | 47.62 | 85.72 | 5.82 | 182.188 |
| 2 | 53.97 | 95.25 | 5.82 | 220.867 |
| 2-1/4 | 60.32 | 101.6 | 7.37 | 303.505 |
| 2-1/2 | 66.67 | 114.3 | 7.37 | 391.398 |
