Type II Cross Recessed Undercut Oval Countersunk Head Tapping Screws - Type C Thread Forming [Table 27]
ASME B 18.6.4 - 1998 (R2005) II型十字槽半沉头清根自攻螺钉 C型(统一螺纹) [Table 27]
See all versions and complete specifications: Type II Cross Recessed Undercut Oval Countersunk Head Tapping Screws - Type C Thread Forming [Table 27] — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2# | 0.0990 | 0.026 | 0.058 | 0.042 | 0.033 | 7/32 | 0.187 | 0.059 | 0.111 | 0.167 | 0.075 |
| 3# | 0.1250 | 0.032 | 0.080 | 0.053 | 0.041 | 1/4 | 0.237 |
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| 0.076 |
| 0.147 |
| 0.215 |
| 0.094 |
| 4# | 0.1640 | 0.039 | 0.112 | 0.070 | 0.052 | 7/16 | 0.312 | 0.101 | 0.197 | 0.285 | 0.123 |
| 5# | 0.2160 | 0.048 | 0.148 | 0.092 | 0.068 | 9/16 | 0.412 | 0.135 | 0.260 | 0.380 | 0.161 |
| 6# | 0.3125 | 0.066 | 0.218 | 0.134 | 0.099 | 5/8 | 0.597 | 0.198 | 0.381 | 0.556 | 0.232 |
| 8# | 0.3750 | 0.077 | 0.266 | 0.161 | 0.117 | 5/8 | 0.717 | 0.239 | 0.453 | 0.670 | 0.278 |
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