Spherical Surface Safety Washer
| Item no. | size/mm | D/mm | d/mm | t/mm | H0Max/mm | H0min/mm | Spring Load/N | Testing load/N | Q/kg/1000pcs |
| SY1001 | 6 | 6.4 | 12 | 1.5 | 1.9 | 1.64 | 8920 | 9400 | 0.943 |
| SY1002 | 8 | 8.4 | 17 | 2 | 2.55 | 2.21 | 15100 | 17200 | 2.438 |
| SY1003 | 10 | 10.5 | 21 | 2.5 | 3.15 | 2.75 | 23200 | 27500 | 4.915 |
| SY1004 | 12 | 13 | 24 | 3 | 3.75 | 3.27 | 34800 | 40000 | 7.194 |
| SY1005 | 14 | 15 | 28 | 3.5 | 4.35 | 3.8 | 44800 | 55000 | 11.61 |
| SY1006 | 16 | 17 | 30 | 4 | 4.95 | 4.31 | 62800 | 75000 | 14.5 |
| SY1007 | 18 | 19 | 33 | 4.5 | 5.5 | 4.8 | 72600 | 95000 | 19.36 |
| SY1008 | 20 | 21 | 36 | 5 | 5.95 | 5.3 | 92200 | 122000 | 25.33 |
| SY1009 | 22 | 23 | 40 | 5.5 | 6.7 | 5.9 | 120000 | 152000 | 35.07 |
| SY1010 | 24 | 25 | 45 | 6 | 7.3 | 6.45 | 135000 | 175000 | 50.28 |
| SY1011 | 27 | 28 | 50 | 6.5 | 8 | 7 | 155000 | 230000 | 66.94 |
| SY1012 | 30 | 31 | 58 | 7 | 8.9 | 7.65 | 180000 | 280000 | 101 |