Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 16]
ASME B 18.6.4 - 1998 (R2005) II型十字槽沉头清根自攻螺钉 C型(统一螺纹) [Table 16]
See all versions and complete specifications: Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 16] — 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 | 0.027 | 0.038 | 0.042 | 0.033 | 7/32 | 0.187 | 0.058 | 0.026 | 0.167 | 0.111 |
| 3# | 0.1250 | 0.050 | 0.062 | 0.053 | 0.043 | 1/4 | 0.237 |
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.
| 0.080 |
| 0.032 |
| 0.215 |
| 0.147 |
| 4# | 0.1640 | 0.082 | 0.095 | 0.070 | 0.058 | 7/16 | 0.312 | 0.112 | 0.039 | 0.285 | 0.197 |
| 5# | 0.2160 | 0.122 | 0.137 | 0.092 | 0.078 | 9/16 | 0.412 | 0.148 | 0.048 | 0.380 | 0.260 |
| 6# | 0.3125 | 0.198 | 0.218 | 0.134 | 0.116 | 5/8 | 0.597 | 0.218 | 0.066 | 0.556 | 0.381 |
| 8# | 0.3750 | 0.244 | 0.266 | 0.161 | 0.140 | 5/8 | 0.717 | 0.266 | 0.077 | 0.670 | 0.453 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.