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They are built for high durability and resist wear, ensuring longevity.
Designed to evenly distribute loads, these washers effectively prevent surface damage. Each washer undergoes rigorous testing to meet the highest quality standards, making them ideal for demanding environments.
| Specification | Φ1.7 | Φ1.8 | Φ2.2 | Φ2.5 | Φ2.7 | Φ2.8 | Φ3.2 | Φ3.7 | Φ4.3 | Φ5.3 | Φ6.4 | Φ7.4 | Φ8.4 | Φ10.5 | F13 | F15 | |
| M | Corresponding bolt specifications | M1.6 | M1.7 | M2 | M2.3 | M2.5 | M2.6 | M3 | M3.5 | M4 | M5 | M6 | M7 | M8 | M10 | M12 | M14 |
| d | min=nominal | 1.7 | 1.8 | 2.2 | 2.5 | 2.7 | 2.8 | 3.2 | 3.7 | 4.3 | 5.3 | 6.4 | 7.4 | 8.4 | 10.5 | 13 | 15 |
| maximum value | 1.84 | 1.94 | 2.34 | 2.64 | 2.84 | 2.94 | 3.38 | 3.88 | 4.48 | 5.48 | 6.62 | 7.62 | 8.62 | 10.77 | 13.27 | 15.27 | |
| dc | max = nominal | 4 | 4.5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 12 | 14 | 16 | 20 | twenty four | 28 |
| minimum | 3.7 | 4.2 | 4.7 | 5.7 | 5.7 | 6.64 | 6.64 | 7.64 | 8.64 | 9.64 | 11.57 | 13.57 | 15.57 | 19.48 | 23.48 | 27.48 | |
| h | Nominal | 0.3 | 0.3 | 0.3 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.8 | 1 | 1.6 | 1.6 | 1.6 | 2 | 2.5 | 2.5 |
| maximum value | 0.35 | 0.35 | 0.35 | 0.55 | 0.55 | 0.55 | 0.55 | 0.55 | 0.9 | 1.1 | 1.8 | 1.8 | 1.8 | 2.2 | 2.7 | 2.7 | |
| minimum | 0.25 | 0.25 | 0.25 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.7 | 0.9 | 1.4 | 1.4 | 1.4 | 1.8 | 2.3 | 2.3 | |
| Thousand pieces (steel)≈kg | 0.024 | 0.031 | 0.037 | 0.092 | 0.088 | 0.127 | 0.119 | 0.155 | 0.308 | 0.443 | 1.02 | 1.39 | 1.83 | 3.57 | 6.27 | 8.62 | |
| Specification | F17 | F19 | F21 | F23 | Φ25 | F27 | F28 | F29 | F31 | F33 | F34 | F36 | F37 | F39 | Φ40 | F41 | |
| M | Corresponding bolt specifications | M16 | M18 | M20 | M22 | M24 | M26 | M27 | M28 | M30 | M32 | M33 | M35 | M36 | M38 | M39 | M40 |
| d | min=nominal | 17 | 19 | 21 | 23 | 25 | 27 | 28 | 29 | 31 | 33 | 34 | 36 | 37 | 39 | 40 | 41 |
| maximum value | 17.27 | 19.33 | 21.33 | 23.33 | 25.33 | 27.33 | 28.33 | 29.33 | 31.39 | 33.62 | 34.62 | 36.62 | 37.62 | 39.62 | 40.62 | 41.62 | |
| dc | max = nominal | 30 | 34 | 37 | 39 | 44 | 50 | 50 | 50 | 56 | 60 | 60 | 66 | 66 | 72 | 72 | 72 |
| minimum | 29.48 | 33.38 | 36.38 | 38.38 | 43.38 | 49.38 | 49.38 | 49.38 | 55.26 | 58.8 | 58.8 | 64.8 | 64.8 | 70.8 | 70.8 | 70.8 | |
| h | Nominal | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 6 | 6 | 6 |
| maximum value | 3.3 | 3.3 | 3.3 | 3.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 5.6 | 5.6 | 5.6 | 5.6 | 6.6 | 6.6 | 6.6 | |
| minimum | 2.7 | 2.7 | 2.7 | 2.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 4.4 | 4.4 | 4.4 | 4.4 | 5.4 | 5.4 | 5.4 | |
| Thousand pieces (steel)≈kg | 11.3 | 14.7 | 17.2 | 18.3 | 32.3 | 43.7 | 42.3 | 40.9 | 53.6 | 77.4 | 75.3 | 94.3 | 92.1 | 136 | 133 | 130 | |
| Specification | F43 | F46 | Φ50 | F52 | F54 | F57 | F58 | Φ60 | F62 | F66 | Φ70 | F74 | F78 | F82 | F87 | F93 | |
| M | Corresponding bolt specifications | M42 | M45 | M48 | M50 | M52 | M55 | M56 | M58 | M60 | M64 | M68 | M72 | M76 | M80 | M85 | M90 |
| d | min=nominal | 43 | 46 | 50 | 52 | 54 | 57 | 58 | 60 | 62 | 66 | 70 | 74 | 78 | 82 | 87 | 93 |
| maximum value | 43.62 | 46.62 | 50.62 | 52.74 | 54.74 | 57.74 | 58.74 | 60.74 | 62.74 | 66.74 | 70.74 | 74.74 | 78.74 | 82.87 | 87.87 | 93.87 | |
| dc | max = nominal | 78 | 85 | 92 | 92 | 98 | 105 | 105 | 110 | 110 | 115 | 120 | 125 | 135 | 140 | 145 | 160 |
| minimum | 76.8 | 83.6 | 90.6 | 90.6 | 96.6 | 103.6 | 103.6 | 108.6 | 108.6 | 113.6 | 118.6 | 123.4 | 133.4 | 138.4 | 143.4 | 158.4 | |
| h | Nominal | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 12 | 12 | 12 |
| maximum value | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 13.2 | 13.2 | 13.2 | |
| minimum | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 10.8 | 10.8 | 10.8 | |
| Thousand pieces (steel)≈kg | 183 | 220 | 294 | 284 | 330 | 431 | 425 | 472 | 458 | 492 | 586 | 626 | 749 | 953 | 996 | 1250 | |
| Specification | F98 | F104 | F109 | F114 | F119 | F124 | F129 | F134 | F139 | F144 | F149 | Φ155 | Φ165 | |
| M | Corresponding bolt specifications | M95 | M100 | M105 | M110 | M115 | M120 | M125 | M130 | M135 | M140 | M145 | M150 | M160 |
| d | min=nominal | 98 | 104 | 109 | 114 | 119 | 124 | 129 | 134 | 139 | 144 | 149 | 155 | 165 |
| maximum value | 98.87 | 104.87 | 109.87 | 114.87 | 119.87 | 125 | 130 | 135 | 140 | 145 | 150 | 156 | 166 | |
| dc | max = nominal | 165 | 175 | 180 | 185 | 200 | 210 | 220 | 220 | 230 | 240 | 250 | 250 | 250 |
| minimum | 163.4 | 173.4 | 178.4 | 183.15 | 198.15* | 208.15 | 218.15 | 218.15 | 228.15 | 238.15 | 248.15 | 248.15 | 248.15 | |
| h | Nominal | 12 | 14 | 14 | 14 | 14 | 16 | 16 | 16 | 16 | 18 | 18 | 18 | 18 |
| maximum value | 13.2 | 15.2 | 15.2 | 15.2 | 15.2 | 17.2 | 17.2 | 17.2 | 17.2 | 19.2 | 19.2 | 19.2 | 19.2 | |
| minimum | 10.8 | 12.8 | 12.8 | 12.8 | 12.8 | 14.8 | 14.8 | 14.8 | 14.8 | 16.8 | 16.8 | 16.8 | 16.8 | |
| Thousand pieces (steel)≈kg | 1300 | 1710 | 1770 | 1830 | 2230 | 2830 | 3130 | 3000 | 3310 | 4090 | 4470 | 4270 | 3910 | |
Befast’s carbon steel flat washers are highly durable and distribute loads effectively across surfaces, reducing surface damage.
Each washer is rigorously tested to ensure quality, providing reliable support in demanding industrial applications. Their high strength makes them an ideal solution for critical assembly needs.
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