Type IA Cross Recessed Undercut Oval Countersunk Head Tapping Screws - Type AB Thread Forming [Table 26]
ASME B 18.6.4 - 1998 (R2005) IA型米字槽半沉头清根自攻螺钉 AB型 [Table 26]
See all versions and complete specifications: Type IA Cross Recessed Undercut Oval Countersunk Head Tapping Screws - Type AB Thread Forming [Table 26] — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0# | 0.0730 | 0.018 | 0.043 | 0.031 | 0.025 | 3/16 | 0.137 | 0.042 | 0.070 | 0.120 | 0.056 |
| 1# | 0.0990 | 0.030 | 0.077 | 0.042 | 0.033 | 7/32 | 0.187 |
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| 0.059 |
| 0.118 |
| 0.167 |
| 0.075 |
| 2# | 0.1250 | 0.041 | 0.080 | 0.053 | 0.041 | 1/4 | 0.237 | 0.076 | 0.152 | 0.215 | 0.094 |
| 3# | 0.1510 | 0.041 | 0.105 | 0.064 | 0.049 | 3/8 | 0.287 | 0.093 | 0.176 | 0.262 | 0.113 |
| 4# | 0.1900 | 0.041 | 0.132 | 0.081 | 0.060 | 1/2 | 0.362 | 0.118 | 0.202 | 0.333 | 0.142 |
| 5# | 0.2500 | 0.057 | 0.168 | 0.107 | 0.079 | 5/8 | 0.477 | 0.158 | 0.284 | 0.442 | 0.186 |
| 6# | 0.3125 | 0.086 | 0.223 | 0.134 | 0.099 | 13/16 | 0.597 | 0.198 | 0.374 | 0.556 | 0.232 |
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