Type IA Cross Recessed Flat Countersunk Head Wood Screws [Table 4]
ASME/ANSI B 18.6.1 (T4) - 1981 (R2016) IA型米字槽沉头木螺钉 [Table 4]
See all versions and complete specifications: Type IA Cross Recessed Flat Countersunk Head Wood Screws [Table 4] — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0# | 28 | 0.018 | 0.036 | 0.123 | 0.043 | 0.077 | 0.066 | 0.064 | 0.052 | 0.146 | 0.077 |
| 1# | 24 | 0.029 | 0.052 | 0.171 | 0.059 | 0.103 | 0.092 | 0.094 | 0.068 | 0.199 | 0.107 |
| 2# | 20 | 0.041 | 0.068 | 0.220 | 0.075 | 0.129 | 0.118 | 0.141 | 0.086 | 0.252 | 0.154 |
| 3# | 16 | 0.041 | 0.103 | 0.268 |
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.
| 0.091 |
| 0.155 |
| 0.144 |
| 0.176 |
| 0.121 |
| 0.305 |
| 0.189 |
| 4# | 15 | 0.041 | 0.118 | 0.292 | 0.100 | 0.168 | 0.157 | 0.191 | 0.136 | 0.332 | 0.204 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.