Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 18]
ASME B 18.6.4 - 1998 (R2005) IA型十字槽沉头精整自攻螺钉 AB型 [Table 18]
See all versions and complete specifications: Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 18] — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4# | 0.1250 | 0.079 | 1 | 0.191 | 0.060 | 4 | 0.119 | 0.081 | 0.030 | 0.212 | 0.122 |
| 5# | 0.1380 | 0.071 | 2 | 0.215 | 0.068 | 5 | 0.131 | 0.077 | 0.041 | 0.237 | 0.148 |
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| 6# | 0.2160 | 0.117 | 2 | 0.285 | 0.069 | 8 | 0.207 | 0.122 | 0.041 | 0.312 | 0.192 |
| 8# | 0.3125 | 0.136 | 3 | 0.380 | 0.075 | 12 | 0.302 | 0.149 | 0.056 | 0.412 | 0.262 |
| 10# | 0.3125 | 0.151 | 3 | 0.442 | 0.116 | 1/4 | 0.302 | 0.164 | 0.057 | 0.477 | 0.276 |
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