Type IA Cross Recessed Truss Head Tapping Screws - Type C Thread Forming [Table F3]
ASME B 18.6.4 - 1998 (R2005) IA型米字槽大扁头自攻螺钉 C型(统一螺纹) [Table F3]
See all versions and complete specifications: Type IA Cross Recessed Truss Head Tapping Screws - Type C Thread Forming [Table F3] — 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 | 0.040 | 0.056 | 0.051 | 0.098 | 0.226 | 0.211 | 0.029 | 1 | 0.061 | 0.058 |
| 3# | 0.1250 | 0.059 | 0.075 | 0.066 | 0.118 | 0.289 | 0.272 | 0.030 | 1 | 0.078 | 0.077 |
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
| 4# | 0.1640 | 0.061 | 0.079 | 0.088 | 0.156 | 0.384 | 0.364 | 0.041 | 2 | 0.102 | 0.085 |
| 5# | 0.2160 | 0.083 | 0.101 | 0.118 | 0.228 | 0.511 | 0.487 | 0.055 | 3 | 0.134 | 0.114 |
| 6# | 0.3125 | 0.143 | 0.161 | 0.162 | 0.326 | 0.698 | 0.666 | 0.086 | 4 | 0.183 | 0.178 |
| 8# | 0.3750 | 0.174 | 0.192 | 0.191 | 0.358 | 0.823 | 0.787 | 0.086 | 4 | 0.215 | 0.210 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.