Flat Coutersunk Trim Head Tapping Screws - Type AB and ABR
ASME B 18.6.3 (H4B-I/H4B-IA+T1A) - 2024 十字槽小沉头 AB ABR自攻螺钉
See all versions and complete specifications: Flat Coutersunk Trim Head Tapping Screws - Type AB and ABR — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4# | 4 | 0.122 | 0.122 | 0.191 | 0.060 | 0.1250 | 20 | 80° | 1 | 0.212 | 82° |
| 5# | 5 | 0.148 | 0.148 | 0.215 | 0.068 | 0.1380 | 20 | 80° | 2 | 0.237 | 82° |
| 6# | 8 | 0.192 | 0.192 | 0.285 | 0.069 | 0.2160 | 14 | 80° | 2 | 0.312 | 82° |
| 8# | 12 | 0.262 | 0.262 | 0.380 | 0.075 |
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.
| 0.3125 |
| 12 |
| 80° |
| 3 |
| 0.412 |
| 82° |
| 10# | 5/16 | 0.358 | 0.358 | 0.556 | 0.155 | 0.3750 | 12 | 80° | 4 | 0.597 | 82° |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.