Cross Recessed Pan Head Screws with B.S.W. & B.S.F. Threads [Table 5]
BS 450 - 1958 英制十字槽盘头螺钉 - B.S.W. & B.S.F. 螺纹 [Table 5]
See all versions and complete specifications: Cross Recessed Pan Head Screws with B.S.W. & B.S.F. Threads [Table 5] — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 0.5000 | 0.413 | 4 | 0.958 | 0.281 | 12 | 16 | 0.031 | 0.050 | 0.987 | 0.26 |
| 1/8 | 0.1875 | 0.184 | 2 | 0.357 | 0.11 | 24 | (32) | 0.015 | 0.025 | 0.373 | 0.099 |
| 3/16 | 0.2500 | 0.266 | 3 | 0.473 | 0.144 | 20 | 26 | 0.031 | 0.040 | 0.492 | 0.13 |
| 7/32 | 0.3750 | 0.371 | 4 | 0.716 | 0.212 |
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.
| 16 |
| 20 |
| 0.031 |
| 0.045 |
| 0.74 |
| 0.195 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.