Project Description
Plain washer grade C
Plain washer grade C is washer with hardness range 100HV to 200HV , and tolerance grade C with normal sizes ranging from 1.6mm to 64mm.
The grade C plain washers are suitable for hexagon bolts and screws of grades C with property class of up to 6.8 and hexagon nuts of products C with property classes up to 6.
Standards: ISO 7091/ASME B18.22.1
Material:steel .
Finish:natural finish or electroplating as agreed.
Tolerance: products grade C refer to ISO4759-3.
Hardness range: 100HV-200HV.
Plain washer grade C
Dimension in mm.
| Nominal size (Nominal thread diameter, d) |
Clearance hole d1 | Outside diameter d2 | Thickness h | ||||
| nom(min.) | max. | nom(max.) | min. | nom. | max. | minl | |
| 1,6 | 1,80 | 2,05 | 4,00 | 3,25 | 0,3 | 0.4 | 0,2 |
| 2 | 2,40 | 2,65 | 5,00 | 4,25 | 0,3 | 0,4 | 0.2 |
| 2,5 | 2,90 | 3,15 | 6,00 | 5,25 | 0,5 | 0,6 | 0,4 |
| 3 | 3.4 | 3,7 | 7,0 | 6,1 | 0,5 | 0.6 | 0.4 |
| 4 | 4,5 | 4,8 | 9,0 | 8,1 | 0,8 | 1 | 0,6 |
| 5 | 5,5 | 5,8 | 10,0 | 9,1 | 1 | 1,2 | 0,8 |
| 6 | 6,60 | 6,96 | 12,0 | 10,9 | 1.6 | 1,9 | 1,3 |
| 8 | 9,00 | 9,36 | 16,0 | 14.9 | 1,6 | 1.9 | 1,3 |
| 10 | 11,00 | 11,43 | 20,0 | 18,7 | 2 | 2,3 | 17 |
| 12 | 13,50 | 13,93 | 24,0 | 22,7 | 2,5 | 2.8 | 2,2 |
| 16 | 17,50 | 17,93 | 30,0 | 28,7 | 3 | 3,6 | 2,4 |
| 20 | 22,00 | 22,52 | 37,0 | 35,4 | 3 | 3,6 | 2,4 |
| 24 | 26,00 | 26,52 | 44,0 | 42,4 | 4 | 4,6 | 3,4 |
| 30 | 33,00 | 33,62 | 56,0 | 54,1 | 4 | 4.6 | 3,4 |
| 36 | 39 | 40 | 66,0 | 64,1 | 5 | 6 | 4 |
| 42 | 45 | 46 | 78,0 | 76,1 | 8 | 9,2 | 6,8 |
| 48 | 52,0 | 53,2 | 92,0 | 89,8 | 8 | 9.2 | 6.8 |
| 56 | 62,0 | 63,2 | 105,0 | 102,8 | 10 | 11,2 | 8,8 |
| 64 | 70,0 | 71,2 | 115,0 | 112,8 | 10 | 11,2 | 8,8 |
