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Stainless steel flat washers from Befast ensure exceptional corrosion resistance, ideal for challenging environments. They are crafted for durability and consistently distribute loads to protect surfaces from damage.
Produced under high-quality control, these washers deliver stability and secure fastening support, making them a preferred choice for high-performance applications.
| 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 | |
Our stainless steel flat washers provide outstanding corrosion resistance, essential for outdoor or humid environments.
These washers are crafted for durability and consistent load distribution, protecting surfaces from wear. Each product meets stringent quality standards, delivering secure support in every application.
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