Project Description
Plain washer grade A
Plain washer grade A is plain washer with 200HV and 300HV hardness classes, no chamfer with sizes ranging from 1.6mm to 64mm.
The grade A plain washers are suitable for hexagon bolts and screws of grades A and B with property class of 8.8 to 10.9 and hexagon nuts of products A and B with property classes up to 8,10.
Standards: ISO 7089/ASME B18.22.1/DIN 125A
Material:Carbon steel
Stainless steel A2,A4,C1,C4,F1
Finish:natural finish or electroplating as agreed
Tolerance: products grade A refer to ISO4759-3.
Hardness range: 200HV-300HV.
Plain washer Grade A
Dimension in mm.
| Nominal size(Nominal threaddiameter, d) | Clearance hole d1 | Outside diameter d2 | Thickness h | ||||
| nor(min) | max. | nom(max.) | min. | nom. | max. | minl | |
| 1,6 | 1,70 | 1,84 | 4,0 | 3.7 | 0,3 | 0,35 | 0,25 |
| 2 | 2.2 | 2,34 | 5 | 4.7 | 0.3 | 0,35 | 0,25 |
| 2,5 | 2,70 | 2,84 | 6,0 | 5,7 | 0,5 | 0,55 | 0,45 |
| 3 | 3,20 | 3,38 | 7,00 | 6,64 | 0.5 | 0,66 | 0:45 |
| 4 | 4,30 | 4,48 | 9,00 | 8,64 | 0.8 | 0,9 | 0,7 |
| 5 | 5,30 | 5,48 | 10,00 | 9,64 | 1 | 1,1 | 0,9 |
| 6 | 6,40 | 6,62 | 12,00 | 11,57 | 1,6 | 1,8 | 1.4 |
| 8 | 8,40 | 8,62 | 16,00 | 15,57 | 1,6 | 1,8 | 1,4 |
| 10 | 10,50 | 10,77 | 20,00 | 19:48 | 2 | 2,2 | 1,8 |
| 12 | 13,00 | 13,27 | 24,00 | 23:48 | 2,5 | 2,7 | 2.3 |
| 16 | 17,00 | 17,27 | 30 | 29:48 | 3 | 3,3 | 2,7 |
| 20 | 21,00 | 21,33 | 37 | 36,38 | 3 | 3,3 | 27 |
| 24 | 25,00 | 25,33 | 44:00 | 43,38 | 4 | 4.3 | 3,7 |
| 30 | 31,00 | 31,39 | 56,00 | 55:26 | 4 | 4.3 | 3,7 |
| 36 | 37 | 37,62 | 66,0 | 64,8 | 5 | 5,6 | 4,4 |
| 42 | 45 | 45,62 | 78,0 | 76,8 | 8 | 9 | 7 |
| 48 | 52 | 52,74 | 92 | 90,6 | 8 | 9 | 7 |
| 56 | 62,00 | 62,74 | 105,0 | 103.6 | 10 | 11 | 9 |
| 64 | 70,00 | 70,74 | 115,0 | 113.6 | 10 | 11 | 9 |
