Slotted Pan Head Screws with B.S.W. & B.S.F. Threads [Table 5]
BS 450 - 1958 BSW/BSF 开槽盘头螺钉 - B.S.W. & B.S.F. 螺纹 [Table 5]
See all versions and complete specifications: Slotted 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 | 0.031 | 0.145 | 0.958 | 0.281 | 12 | 16 | 0.104 | 0.092 | 0.987 | 0.260 |
| 1/8 | 0.1875 | 0.015 | 0.061 | 0.357 | 0.110 | 24 | (32) | 0.050 | 0.042 | 0.373 | 0.099 |
| 3/8 | 0.7500 | 0.031 | 0.213 | 1.209 | 0.419 | 10 | 12 | 0.148 | 0.134 | 1.250 | 0.390 |
| 3/16 | 0.2500 | 0.031 | 0.078 | 0.473 |
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| 0.144 |
| 20 |
| 26 |
| 0.061 |
| 0.051 |
| 0.492 |
| 0.130 |
| 5/16 | 0.6250 | 0.031 | 0.179 | 1.090 | 0.350 | 11 | 14 | 0.126 | 0.113 | 1.125 | 0.325 |
| 7/32 | 0.3750 | 0.031 | 0.112 | 0.716 | 0.212 | 16 | 20 | 0.082 | 0.072 | 0.740 | 0.195 |
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