The High Alloy helical spring split lock washers are manufactured from 4037 alloy steel. These washers are intended for use with Grade 5 and Grade 8 bolt and nut assembly applications.
| Finish |
| PLN = Plain MZ1= Mechanical Zinc & Clear Dichromate MZ2= Mechanical Zinc & Yellow Dichromate |
Ordering Example: 1/4 HA MZ2 is a 1/4 High Alloy Steel with a Mechanical Zinc & Yellow Dichromate finish.
| Nominal Washer Size |
Inside Diameter A Min. |
Inside Diameter A Max. |
Outside Diameter B |
Width C |
Thickness D |
WCL Product Number |
|---|---|---|---|---|---|---|
| 1/4 | 0.252 | 0.26 | 0.487 | 0.109 | 0.062 | 1/4 Reg Hi Alloy |
| 5/16 | 0.314 | 0.322 | 0.583 | 0.125 | 0.078 | 5/16 Reg Hi Alloy |
| 3/8 | 0.377 | 0.385 | 0.68 | 0.141 | 0.094 | 3/8 Reg Hi Alloy |
| 7/16 | 0.44 | 0.45 | 0.776 | 0.156 | 0.109 | 7/16 Reg Hi Alloy |
| 1/2 | 0.502 | 0.512 | 0.869 | 0.171 | 0.125 | 1/2 Reg Hi Alloy |
| 9/16 | 0.564 | 0.574 | 0.965 | 0.188 | 0.141 | 9/16 Reg Hi Alloy |
| 5/8 | 0.628 | 0.641 | 1.073 | 0.203 | 0.156 | 5/8 Reg Hi Alloy |
| 3/4 | 0.753 | 0.766 | 1.265 | 0.234 | 0.188 | 3/4 Reg Hi Alloy |
| 7/8 | 0.878 | 0.894 | 0.483 | 0.107 | 0.047 | 7/8 Reg Hi Alloy |
| 1 | 1.003 | 1.024 | 1.656 | 0.297 | 0.25 | 1 Reg Hi Alloy |