| SIZE |
ST3.5 |
ST3.9 |
| P |
|
1.41 |
| d2 |
|
3.75 +0.20 |
| d1 |
|
2.59 +0.150 |
| M |
|
4.6 |
| RECESS DEPTH |
|
2.1--2.6 |
| 1.PHIL TYPE. |
|
#2 |
|
|
|
| 2.HEAT TREATMENT: |
CASE HARDNESS>=450HV0.3 |
|
|
|
CORE HARDNESS<=270HV3905 |
|
|
EFFECTIVECASE DEPTH:0.10--0.23 |
|
| 3.FINISH: |
BLACK PHOSPHATED /ZINC PLATED |
| 4.INSPECTION ACCORDING TO GB90-85 |
|
|
|
CATALOG
